cli-1.0.0

Handle carriage returns in source JSON whitespace

.gitignore

@@ -1,9 +1,3 @@
 /target
 .idea
 *.iml
-
-# test data
-*.json
-
-# local install script
-install.sh

.rustfmt.toml

@@ -0,0 +1,3 @@
+imports_granularity = "Crate"
+newline_style = "Unix"
+group_imports = "StdExternalCrate"

CHANGELOG.md

@@ -0,0 +1,11 @@
+# 2.1.0
+
+- Strip `\r` from source (https://github.com/Noratrieb/jsonformat/pull/7)
+- Various project cleanups
+
+# 2.0.0
+
+There are many changes, the two formatting functions have been renamed, `format_reader_writer` now takes
+a `W` and `R` instead of `&mut BufReader<W>`, it now always adds a trailing newline. `Indentation::Default` was
+renamed to `Indentation::TwoSpaces` and `FourSpaces` and `Tab` were added. There may be a few more
+small changes.

Cargo.lock

@@ -1,5 +1,22 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "aho-corasick"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "anyhow"
+version = "1.0.97"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dcfed56ad506cb2c684a14971b8861fdc3baaaae314b9e5f9bb532cbe3ba7a4f"
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -13,42 +30,27 @@ dependencies = [
 
 [[package]]
 name = "autocfg"
-version = "1.0.1"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
+checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
 
 [[package]]
 name = "bitflags"
-version = "1.2.1"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
-
-[[package]]
-name = "bstr"
-version = "0.2.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90682c8d613ad3373e66de8c6411e0ae2ab2571e879d2efbf73558cc66f21279"
-dependencies = [
- "lazy_static",
- "memchr",
- "regex-automata",
- "serde",
-]
 
 [[package]]
 name = "bumpalo"
-version = "3.7.0"
+version = "3.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c59e7af012c713f529e7a3ee57ce9b31ddd858d4b512923602f74608b009631"
+checksum = "1628fb46dfa0b37568d12e5edd512553eccf6a22a78e8bde00bb4aed84d5bdbf"
 
 [[package]]
 name = "cast"
-version = "0.2.7"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c24dab4283a142afa2fdca129b80ad2c6284e073930f964c3a1293c225ee39a"
+checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
-dependencies = [
- "rustc_version",
-]
 
 [[package]]
 name = "cfg-if"
@@ -58,9 +60,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "2.33.3"
+version = "2.34.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37e58ac78573c40708d45522f0d80fa2f01cc4f9b4e2bf749807255454312002"
+checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
 dependencies = [
  "bitflags",
  "textwrap 0.11.0",
@@ -69,48 +71,55 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "3.0.0-beta.2"
+version = "3.2.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bd1061998a501ee7d4b6d449020df3266ca3124b941ec56cf2005c3779ca142"
+checksum = "4ea181bf566f71cb9a5d17a59e1871af638180a18fb0035c92ae62b705207123"
 dependencies = [
  "atty",
  "bitflags",
  "clap_derive",
+ "clap_lex",
  "indexmap",
- "lazy_static",
+ "once_cell",
- "os_str_bytes",
  "strsim",
  "termcolor",
- "textwrap 0.12.1",
+ "textwrap 0.16.2",
- "unicode-width",
- "vec_map",
 ]
 
 [[package]]
 name = "clap_derive"
-version = "3.0.0-beta.2"
+version = "3.2.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "370f715b81112975b1b69db93e0b56ea4cd4e5002ac43b2da8474106a54096a1"
+checksum = "ae6371b8bdc8b7d3959e9cf7b22d4435ef3e79e138688421ec654acf8c81b008"
 dependencies = [
  "heck",
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2850f2f5a82cbf437dd5af4d49848fbdfc27c157c3d010345776f952765261c5"
+dependencies = [
+ "os_str_bytes",
 ]
 
 [[package]]
 name = "criterion"
-version = "0.3.4"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab327ed7354547cc2ef43cbe20ef68b988e70b4b593cbd66a2a61733123a3d23"
+checksum = "b01d6de93b2b6c65e17c634a26653a29d107b3c98c607c765bf38d041531cd8f"
 dependencies = [
  "atty",
  "cast",
- "clap 2.33.3",
+ "clap 2.34.0",
  "criterion-plot",
  "csv",
- "itertools 0.10.1",
+ "itertools",
  "lazy_static",
  "num-traits",
  "oorandom",
@@ -127,65 +136,45 @@ dependencies = [
 
 [[package]]
 name = "criterion-plot"
-version = "0.4.3"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e022feadec601fba1649cfa83586381a4ad31c6bf3a9ab7d408118b05dd9889d"
+checksum = "2673cc8207403546f45f5fd319a974b1e6983ad1a3ee7e6041650013be041876"
 dependencies = [
  "cast",
- "itertools 0.9.0",
+ "itertools",
-]
-
-[[package]]
-name = "crossbeam-channel"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
-dependencies = [
- "cfg-if",
- "crossbeam-utils",
 ]
 
 [[package]]
 name = "crossbeam-deque"
-version = "0.8.0"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94af6efb46fef72616855b036a624cf27ba656ffc9be1b9a3c931cfc7749a9a9"
+checksum = "9dd111b7b7f7d55b72c0a6ae361660ee5853c9af73f70c3c2ef6858b950e2e51"
 dependencies = [
- "cfg-if",
  "crossbeam-epoch",
  "crossbeam-utils",
 ]
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.5"
+version = "0.9.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ec02e091aa634e2c3ada4a392989e7c3116673ef0ac5b72232439094d73b7fd"
+checksum = "5b82ac4a3c2ca9c3460964f020e1402edd5753411d7737aa39c3714ad1b5420e"
 dependencies = [
- "cfg-if",
  "crossbeam-utils",
- "lazy_static",
- "memoffset",
- "scopeguard",
 ]
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.5"
+version = "0.8.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
+checksum = "d0a5c400df2834b80a4c3327b3aad3a4c4cd4de0629063962b03235697506a28"
-dependencies = [
- "cfg-if",
- "lazy_static",
-]
 
 [[package]]
 name = "csv"
-version = "1.1.6"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22813a6dc45b335f9bade10bf7271dc477e81113e89eb251a0bc2a8a81c536e1"
+checksum = "acdc4883a9c96732e4733212c01447ebd805833b7275a73ca3ee080fd77afdaf"
 dependencies = [
- "bstr",
  "csv-core",
  "itoa",
  "ryu",
@@ -194,39 +183,36 @@ dependencies = [
 
 [[package]]
 name = "csv-core"
-version = "0.1.10"
+version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b2466559f260f48ad25fe6317b3c8dac77b5bdb5763ac7d9d6103530663bc90"
+checksum = "7d02f3b0da4c6504f86e9cd789d8dbafab48c2321be74e9987593de5a894d93d"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "either"
-version = "1.6.1"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
+checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
 
 [[package]]
 name = "half"
-version = "1.7.1"
+version = "1.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62aca2aba2d62b4a7f5b33f3712cb1b0692779a56fb510499d5c0aa594daeaf3"
+checksum = "1b43ede17f21864e81be2fa654110bf1e793774238d86ef8555c37e6519c0403"
 
 [[package]]
 name = "hashbrown"
-version = "0.11.2"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
+checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
 [[package]]
 name = "heck"
-version = "0.3.3"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d621efb26863f0e9924c6ac577e8275e5e6b77455db64ffa6c65c904e9e132c"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
-dependencies = [
- "unicode-segmentation",
-]
 
 [[package]]
 name = "hermit-abi"
@@ -239,9 +225,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.7.0"
+version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc633605454125dec4b66843673f01c7df2b89479b32e0ed634e43a91cff62a5"
+checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
 dependencies = [
  "autocfg",
  "hashbrown",
@@ -249,117 +235,101 @@ dependencies = [
 
 [[package]]
 name = "itertools"
-version = "0.9.0"
+version = "0.10.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "284f18f85651fe11e8a991b2adb42cb078325c996ed026d994719efcfca1d54b"
+checksum = "b0fd2260e829bddf4cb6ea802289de2f86d6a7a690192fbe91b3f46e0f2c8473"
-dependencies = [
- "either",
-]
-
-[[package]]
-name = "itertools"
-version = "0.10.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69ddb889f9d0d08a67338271fa9b62996bc788c7796a5c18cf057420aaed5eaf"
 dependencies = [
  "either",
 ]
 
 [[package]]
 name = "itoa"
-version = "0.4.7"
+version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
+checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
 
 [[package]]
 name = "js-sys"
-version = "0.3.51"
+version = "0.3.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83bdfbace3a0e81a4253f73b49e960b053e396a11012cbd49b9b74d6a2b67062"
+checksum = "1cfaf33c695fc6e08064efbc1f72ec937429614f25eef83af942d0e227c3a28f"
 dependencies = [
+ "once_cell",
  "wasm-bindgen",
 ]
 
 [[package]]
 name = "jsonformat"
-version = "0.1.0"
+version = "2.1.0"
 dependencies = [
- "clap 3.0.0-beta.2",
  "criterion",
 ]
 
+[[package]]
+name = "jsonformat-cli"
+version = "1.0.0"
+dependencies = [
+ "anyhow",
+ "clap 3.2.25",
+ "jsonformat",
+]
+
 [[package]]
 name = "lazy_static"
-version = "1.4.0"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.98"
+version = "0.2.171"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "320cfe77175da3a483efed4bc0adc1968ca050b098ce4f2f1c13a56626128790"
+checksum = "c19937216e9d3aa9956d9bb8dfc0b0c8beb6058fc4f7a4dc4d850edf86a237d6"
 
 [[package]]
 name = "log"
-version = "0.4.14"
+version = "0.4.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+checksum = "30bde2b3dc3671ae49d8e2e9f044c7c005836e7a023ee57cffa25ab82764bb9e"
-dependencies = [
- "cfg-if",
-]
 
 [[package]]
 name = "memchr"
-version = "2.4.0"
+version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"
+checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
-
-[[package]]
-name = "memoffset"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59accc507f1338036a0477ef61afdae33cde60840f4dfe481319ce3ad116ddf9"
-dependencies = [
- "autocfg",
-]
 
 [[package]]
 name = "num-traits"
-version = "0.2.14"
+version = "0.2.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
 dependencies = [
  "autocfg",
 ]
 
 [[package]]
-name = "num_cpus"
+name = "once_cell"
-version = "1.13.0"
+version = "1.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
+checksum = "d75b0bedcc4fe52caa0e03d9f1151a323e4aa5e2d78ba3580400cd3c9e2bc4bc"
-dependencies = [
- "hermit-abi",
- "libc",
-]
 
 [[package]]
 name = "oorandom"
-version = "11.1.3"
+version = "11.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ab1bc2a289d34bd04a330323ac98a1b4bc82c9d9fcb1e66b63caa84da26b575"
+checksum = "d6790f58c7ff633d8771f42965289203411a5e5c68388703c06e14f24770b41e"
 
 [[package]]
 name = "os_str_bytes"
-version = "2.4.0"
+version = "6.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afb2e1c3ee07430c2cf76151675e583e0f19985fa6efae47d6848a3e2c824f85"
+checksum = "e2355d85b9a3786f481747ced0e0ff2ba35213a1f9bd406ed906554d7af805a1"
 
 [[package]]
 name = "plotters"
-version = "0.3.1"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32a3fd9ec30b9749ce28cd91f255d569591cdf937fe280c312143e3c4bad6f2a"
+checksum = "5aeb6f403d7a4911efb1e33402027fc44f29b5bf6def3effcc22d7bb75f2b747"
 dependencies = [
  "num-traits",
  "plotters-backend",
@@ -370,15 +340,15 @@ dependencies = [
 
 [[package]]
 name = "plotters-backend"
-version = "0.3.2"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d88417318da0eaf0fdcdb51a0ee6c3bed624333bff8f946733049380be67ac1c"
+checksum = "df42e13c12958a16b3f7f4386b9ab1f3e7933914ecea48da7139435263a4172a"
 
 [[package]]
 name = "plotters-svg"
-version = "0.3.1"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "521fa9638fa597e1dc53e9412a4f9cefb01187ee1f7413076f9e6749e2885ba9"
+checksum = "51bae2ac328883f7acdfea3d66a7c35751187f870bc81f94563733a154d7a670"
 dependencies = [
  "plotters-backend",
 ]
@@ -392,7 +362,7 @@ dependencies = [
  "proc-macro-error-attr",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
  "version_check",
 ]
 
@@ -409,82 +379,82 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.27"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0d8caf72986c1a598726adc988bb5984792ef84f5ee5aa50209145ee8077038"
+checksum = "a31971752e70b8b2686d7e46ec17fb38dad4051d94024c88df49b667caea9c84"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.9"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7"
+checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "rayon"
-version = "1.5.1"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c06aca804d41dbc8ba42dfd964f0d01334eceb64314b9ecf7c5fad5188a06d90"
+checksum = "b418a60154510ca1a002a752ca9714984e21e4241e804d32555251faf8b78ffa"
 dependencies = [
- "autocfg",
- "crossbeam-deque",
  "either",
  "rayon-core",
 ]
 
 [[package]]
 name = "rayon-core"
-version = "1.9.1"
+version = "1.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d78120e2c850279833f1dd3582f730c4ab53ed95aeaaaa862a2a5c71b1656d8e"
+checksum = "1465873a3dfdaa8ae7cb14b4383657caab0b3e8a0aa9ae8e04b044854c8dfce2"
 dependencies = [
- "crossbeam-channel",
  "crossbeam-deque",
  "crossbeam-utils",
- "lazy_static",
- "num_cpus",
 ]
 
 [[package]]
 name = "regex"
-version = "1.5.4"
+version = "1.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
 dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
  "regex-syntax",
 ]
 
 [[package]]
 name = "regex-automata"
-version = "0.1.10"
+version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
+checksum = "809e8dc61f6de73b46c85f4c96486310fe304c434cfa43669d7b40f711150908"
-
-[[package]]
-name = "regex-syntax"
-version = "0.6.25"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
-
-[[package]]
-name = "rustc_version"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
 dependencies = [
- "semver",
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
 ]
 
 [[package]]
-name = "ryu"
+name = "regex-syntax"
-version = "1.0.5"
+version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
+checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
+
+[[package]]
+name = "rustversion"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eded382c5f5f786b989652c49544c4877d9f015cc22e145a5ea8ea66c2921cd2"
+
+[[package]]
+name = "ryu"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
 
 [[package]]
 name = "same-file"
@@ -495,29 +465,20 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "scopeguard"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
-
-[[package]]
-name = "semver"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f3aac57ee7f3272d8395c6e4f502f434f0e289fcd62876f70daa008c20dcabe"
-
 [[package]]
 name = "serde"
-version = "1.0.126"
+version = "1.0.219"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec7505abeacaec74ae4778d9d9328fe5a5d04253220a85c4ee022239fc996d03"
+checksum = "5f0e2c6ed6606019b4e29e69dbaba95b11854410e5347d525002456dbbb786b6"
+dependencies = [
+ "serde_derive",
+]
 
 [[package]]
 name = "serde_cbor"
-version = "0.11.1"
+version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e18acfa2f90e8b735b2836ab8d538de304cbb6729a7360729ea5a895d15a622"
+checksum = "2bef2ebfde456fb76bbcf9f59315333decc4fda0b2b44b420243c11e0f5ec1f5"
 dependencies = [
  "half",
  "serde",
@@ -525,22 +486,23 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.126"
+version = "1.0.219"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "963a7dbc9895aeac7ac90e74f34a5d5261828f79df35cbed41e10189d3804d43"
+checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.100",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.64"
+version = "1.0.140"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "799e97dc9fdae36a5c8b8f2cae9ce2ee9fdce2058c57a93e6099d919fd982f79"
+checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
 dependencies = [
  "itoa",
+ "memchr",
  "ryu",
  "serde",
 ]
@@ -553,20 +515,31 @@ checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
 name = "syn"
-version = "1.0.73"
+version = "1.0.109"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f71489ff30030d2ae598524f61326b902466f72a0fb1a8564c001cc63425bcc7"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
 dependencies = [
  "proc-macro2",
  "quote",
- "unicode-xid",
+ "unicode-ident",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b09a44accad81e1ba1cd74a32461ba89dee89095ba17b32f5d03683b1b1fc2a0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
 ]
 
 [[package]]
 name = "termcolor"
-version = "1.1.2"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dfed899f0eb03f32ee8c6a0aabdb8a7949659e3466561fc0adf54e26d88c5f4"
+checksum = "06794f8f6c5c898b3275aebefa6b8a1cb24cd2c6c79397ab15774837a0bc5755"
 dependencies = [
  "winapi-util",
 ]
@@ -582,12 +555,9 @@ dependencies = [
 
 [[package]]
 name = "textwrap"
-version = "0.12.1"
+version = "0.16.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "203008d98caf094106cfaba70acfed15e18ed3ddb7d94e49baec153a2b462789"
+checksum = "c13547615a44dc9c452a8a534638acdf07120d4b6847c8178705da06306a3057"
-dependencies = [
- "unicode-width",
-]
 
 [[package]]
 name = "tinytemplate"
@@ -600,76 +570,64 @@ dependencies = [
 ]
 
 [[package]]
-name = "unicode-segmentation"
+name = "unicode-ident"
-version = "1.8.0"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8895849a949e7845e06bd6dc1aa51731a103c42707010a5b591c0038fb73385b"
+checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
 
 [[package]]
 name = "unicode-width"
-version = "0.1.8"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
+checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af"
-
-[[package]]
-name = "unicode-xid"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
-
-[[package]]
-name = "vec_map"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
 
 [[package]]
 name = "version_check"
-version = "0.9.3"
+version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
+checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
 [[package]]
 name = "walkdir"
-version = "2.3.2"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "808cf2735cd4b6866113f648b791c6adc5714537bc222d9347bb203386ffda56"
+checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
 dependencies = [
  "same-file",
- "winapi",
  "winapi-util",
 ]
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.74"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d54ee1d4ed486f78874278e63e4069fc1ab9f6a18ca492076ffb90c5eb2997fd"
+checksum = "1edc8929d7499fc4e8f0be2262a241556cfc54a0bea223790e71446f2aab1ef5"
 dependencies = [
  "cfg-if",
+ "once_cell",
+ "rustversion",
  "wasm-bindgen-macro",
 ]
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.74"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b33f6a0694ccfea53d94db8b2ed1c3a8a4c86dd936b13b9f0a15ec4a451b900"
+checksum = "2f0a0651a5c2bc21487bde11ee802ccaf4c51935d0d3d42a6101f98161700bc6"
 dependencies = [
  "bumpalo",
- "lazy_static",
  "log",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.100",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.74"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "088169ca61430fe1e58b8096c24975251700e7b1f6fd91cc9d59b04fb9b18bd4"
+checksum = "7fe63fc6d09ed3792bd0897b314f53de8e16568c2b3f7982f468c0bf9bd0b407"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -677,28 +635,31 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.74"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be2241542ff3d9f241f5e2cb6dd09b37efe786df8851c54957683a49f0987a97"
+checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.100",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.74"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7cff876b8f18eed75a66cf49b65e7f967cb354a7aa16003fb55dbfd25b44b4f"
+checksum = "1a05d73b933a847d6cccdda8f838a22ff101ad9bf93e33684f39c1f5f0eece3d"
+dependencies = [
+ "unicode-ident",
+]
 
 [[package]]
 name = "web-sys"
-version = "0.3.51"
+version = "0.3.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e828417b379f3df7111d3a2a9e5753706cae29c41f7c4029ee9fd77f3e09e582"
+checksum = "33b6dd2ef9186f1f2072e409e99cd22a975331a6b3591b12c764e0e55c60d5d2"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -722,11 +683,11 @@ checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
 [[package]]
 name = "winapi-util"
-version = "0.1.5"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
 dependencies = [
- "winapi",
+ "windows-sys",
 ]
 
 [[package]]
@@ -734,3 +695,76 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
+
+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"

Cargo.toml

@@ -1,18 +1,22 @@
+[workspace]
+members = [".", "jsonformat-cli"]
+
 [package]
 name = "jsonformat"
-version = "0.1.0"
+version = "2.1.0"
-authors = ["Nilstrieb <nilstrieb@gmail.com>"]
+edition = "2024"
-edition = "2018"
+license = "MIT"
-description = "Reads raw json from stdin and formats it to stdout"
+description = "Formats JSON extremely fast"
-
+homepage = "https://github.com/Noratrieb/jsonformat"
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+repository = "https://github.com/Noratrieb/jsonformat"
-
+readme = "README.md"
-[dependencies]
+keywords = ["json", "formatting"]
-clap = "3.0.0-beta.2"
+categories = ["parser-implementations"]
-
+include = ["src/lib.rs", "Cargo.toml", "LICENSE", "README.md", "CHANGELOG.md", "benches/bench.rs"]
-[dev-dependencies]
-criterion = "0.3"
 
 [[bench]]
 name = "bench"
 harness = false
+
+[dev-dependencies]
+criterion = "0.3.5"

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 nilstrieb
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -2,31 +2,43 @@
 
 `jsonformat` is an extremely fast JSON formatter.
 
-It formats over 60MB of nested JSON in under 0.4s.
+It formats over 20MB of nested JSON in 60ms.
 
-## Install
+## Library crate
-Currently, you have to build and install it yourself.  
-`cargo build --release`  
-The executable can then be found in `target/release/jsonformat`
 
-## Usage
+For the library crate, look at [docs.rs](https://docs.rs/jsonformat)
+
+## Binary Install
+You need Rust installed on your system  
+`cargo install jsonformat-cli`
+
+## Binary Usage
 ```
+jsonformat-cli 0.2.0
+Formats JSON extremely fast
+
 USAGE:
-    jsonformat [OPTIONS] [input]
+    jsonformat [OPTIONS] [INPUT]
 
 ARGS:
-    <input>    The input file to format
+    <INPUT>    The input file
-
-FLAGS:
-    -h, --help       Prints help information
-    -V, --version    Prints version information
 
 OPTIONS:
-    -i, --indent <indentation>    Set the indentation used (\s for space, \t for tab)
+    -h, --help                         Print help information
-    -o, --output <output>         The output file for the formatted json
+    -i, --indentation <INDENTATION>    The indentation, s will replaced by a space and t by a tab.
+                                       ss is the default
+    -o, --output <OUTPUT>              The output file
+    -V, --version                      Print version information
 ```
 
-## How?
+Reads from stdin if no file is supplied.
-`jsonformat` does not actually parse the json, it just loops through each characters and keeps track of some flags. It then copies these characters to the output buffer, adding and removing whitespace.
+Outputs to stdout if no output file is specified.
 
-The code is currently a bit chaotic, but it works and is fast, so good enough for now. Maybe it could profit from SIMD in the future, but I have never used it and I don't know whether it would work. Maybe some day...
+## Error handling
+`jsonformat` does not report malformed json - it can't even fully know whether the json is actually malformed. 
+Malformed json is just formatted kind of incorrectly, with no data lost and no crashes. If you find one, open an issue,
+
+
+## How?
+`jsonformat` does not actually parse the json, it just loops through each character and keeps track of some flags. 
+It then copies these characters to the output buffer, adding and removing whitespace.

benches/bench.rs

@@ -1,17 +1,42 @@
-use criterion::{criterion_group, criterion_main, Criterion};
+use std::{fs, path::PathBuf};
-use jsonformat::format_json;
-use std::{fs, io};
 
-/// You need a json file called massive.json in your project root
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
-fn format_massive_json(file: &str) -> io::Result<String> {
+use jsonformat::{format, format_reader_writer, Indentation};
-    Ok(format_json(&file, None))
-}
 
 fn criterion_benchmark(c: &mut Criterion) {
-    let file = fs::read_to_string("massive.json").expect("massive.json file in project directory");
+    // using `include_str` makes the benches a lot less reliable for some reason???
+    let file = PathBuf::from(file!())
+        .parent()
+        .unwrap()
+        .join("large-file.json");
+    let file = fs::read_to_string(file).unwrap();
 
-    c.bench_function("Format massive json", |b| {
+    c.bench_function("Format json default settings", |b| {
-        b.iter(|| format_massive_json(&file))
+        b.iter(|| {
+            let json = format(black_box(&file), Indentation::TwoSpace);
+            black_box(json);
+        })
+    });
+
+    c.bench_function("Format json custom indentation", |b| {
+        b.iter(|| {
+            let json = format(black_box(&file), Indentation::Custom("123456"));
+            black_box(json);
+        })
+    });
+
+    c.bench_function("Format json no utf8 validation", |b| {
+        b.iter(|| {
+            let mut writer = Vec::with_capacity(file.len() * 2);
+
+            format_reader_writer(
+                black_box(file.as_bytes()),
+                &mut writer,
+                Indentation::TwoSpace,
+            )
+            .unwrap();
+            black_box(writer);
+        })
     });
 }
 

jsonformat-cli/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "jsonformat-cli"
+version = "1.0.0"
+edition = "2024"
+license = "MIT"
+description = "Formats JSON extremely fast"
+homepage = "https://github.com/Noratrieb/jsonformat"
+repository = "https://github.com/Noratrieb/jsonformat"
+readme = "README.md"
+keywords = ["json", "formatting", "cli"]
+categories = ["command-line-utilities"]
+
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+jsonformat = { path = "..", version = "2.1.0" }
+clap = { version = "3.1.12", features = ["derive"] }
+anyhow = "1.0.57"
+
+[[bin]]
+name = "jsonformat"
+path = "src/main.rs"

jsonformat-cli/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 nilstrieb
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

jsonformat-cli/README.md

@@ -0,0 +1,44 @@
+# Extremely fast JSON formatter
+
+`jsonformat` is an extremely fast JSON formatter.
+
+It formats over 20MB of nested JSON in 60ms.
+
+## Library crate
+
+For the library crate, look at [docs.rs](https://docs.rs/jsonformat)
+
+## Binary Install
+You need Rust installed on your system  
+`cargo install jsonformat-cli`
+
+## Binary Usage
+```
+jsonformat-cli 0.2.0
+Formats JSON extremely fast
+
+USAGE:
+    jsonformat [OPTIONS] [INPUT]
+
+ARGS:
+    <INPUT>    The input file
+
+OPTIONS:
+    -h, --help                         Print help information
+    -i, --indentation <INDENTATION>    The indentation, s will replaced by a space and t by a tab.
+                                       ss is the default
+    -o, --output <OUTPUT>              The output file
+    -V, --version                      Print version information
+```
+
+Reads from stdin if no file is supplied.
+Outputs to stdout if no output file is specified.
+
+## Error handling
+`jsonformat` does not report malformed json - it can't even fully know whether the json is actually malformed. 
+Malformed json is just formatted kind of incorrectly, with no data lost and no crashes. If you find one, open an issue,
+
+
+## How?
+`jsonformat` does not actually parse the json, it just loops through each character and keeps track of some flags. 
+It then copies these characters to the output buffer, adding and removing whitespace.

jsonformat-cli/src/main.rs

@@ -0,0 +1,81 @@
+use std::{
+    fs::File,
+    io,
+    io::{BufReader, BufWriter, Read, Write},
+    path::PathBuf,
+};
+
+use anyhow::Context;
+use clap::Parser;
+use jsonformat::{format_reader_writer, Indentation};
+
+#[derive(Parser)]
+#[clap(author, about, version)]
+struct Options {
+    /// The indentation, s will replaced by a space and t by a tab. ss is the default.
+    #[clap(short, long)]
+    indentation: Option<String>,
+    #[clap(short, long)]
+    /// The output file
+    output: Option<PathBuf>,
+    /// The input file
+    input: Option<PathBuf>,
+}
+
+fn main() -> anyhow::Result<()> {
+    let options = Options::parse();
+
+    // Note: on-stack dynamic dispatch
+    // ugly af but works
+    let (mut file, stdin, mut stdin_lock);
+    let reader: &mut dyn Read = match &options.input {
+        Some(path) => {
+            file = File::open(path)
+                .context(format!("Name: {}", path.display()))
+                .context("Open input file")?;
+            &mut file
+        }
+        None => {
+            stdin = io::stdin();
+            stdin_lock = stdin.lock();
+            &mut stdin_lock
+        }
+    };
+
+    let replaced_indent = options.indentation.map(|value| {
+        value
+            .to_lowercase()
+            .chars()
+            .filter(|c| ['s', 't'].contains(c))
+            .collect::<String>()
+            .replace('s', " ")
+            .replace('t', "\t")
+    });
+
+    let indent = match replaced_indent {
+        Some(ref str) => Indentation::Custom(str),
+        None => Indentation::TwoSpace,
+    };
+
+    // Note: on-stack dynamic dispatch
+    let (mut file, stdout, mut stdout_lock);
+    let writer: &mut dyn Write = match &options.output {
+        Some(path) => {
+            file = File::create(path)
+                .context(path.display().to_string())
+                .context("Open output file")?;
+            &mut file
+        }
+        None => {
+            stdout = io::stdout();
+            stdout_lock = stdout.lock();
+            &mut stdout_lock
+        }
+    };
+
+    let mut reader = BufReader::new(reader);
+    let mut writer = BufWriter::new(writer);
+    format_reader_writer(&mut reader, &mut writer, indent).context("failed to read or write")?;
+
+    Ok(())
+}

src/lib.rs

@@ -1,37 +1,84 @@
+//! jsonformat is a library for formatting json.
+//!
+//! It does not do anything more than that, which makes it so fast.
+
+use std::{
+    io,
+    io::{Read, Write},
+};
+
+/// Set the indentation used for the formatting.
 ///
+/// Note: It is *not* recommended to set indentation to anything oder than some spaces or some tabs,
+/// but nothing is stopping you from doing that.
+#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
+pub enum Indentation<'a> {
+    /// Fast path for two spaces
+    TwoSpace,
+    /// Fast path for four spaces
+    FourSpace,
+    /// Fast path for tab
+    Tab,
+    /// Use a custom indentation String
+    Custom(&'a str),
+}
+
+impl Default for Indentation<'_> {
+    fn default() -> Self {
+        Self::TwoSpace
+    }
+}
+
 /// # Formats a json string
 ///
-/// The indentation can be set to any custom value  
+/// The indentation can be set to any value using [`Indentation`]
 /// The default value is two spaces
 /// The default indentation is faster than a custom one
-///
+pub fn format(json: &str, indentation: Indentation) -> String {
-pub fn format_json(json: &str, indentation: Option<&str>) -> String {
+    let mut reader = json.as_bytes();
-    // at least as big as the input to avoid resizing
+    let mut writer = Vec::with_capacity(json.len());
-    // this might be too big if the input string is formatted in a weird way, but that's not expected
-    let mut out = String::with_capacity(json.len());
 
+    format_reader_writer(&mut reader, &mut writer, indentation).unwrap();
+    String::from_utf8(writer).unwrap()
+}
+
+/// # Formats a json string
+///
+/// The indentation can be set to any value using [`Indentation`]
+/// The default value is two spaces
+/// The default indentation is faster than a custom one
+pub fn format_reader_writer<R, W>(
+    reader: R,
+    mut writer: W,
+    indentation: Indentation,
+) -> io::Result<()>
+where
+    R: Read,
+    W: Write,
+{
     let mut escaped = false;
     let mut in_string = false;
-    let mut indent_level = 0;
+    let mut indent_level = 0usize;
     let mut newline_requested = false; // invalidated if next character is ] or }
 
-    for char in json.chars() {
+    for char in reader.bytes() {
+        let char = char?;
         if in_string {
             let mut escape_here = false;
             match char {
-                '"' => {
+                b'"' => {
                     if !escaped {
                         in_string = false;
                     }
                 }
-                '\\' => {
+                b'\\' => {
                     if !escaped {
                         escape_here = true;
                     }
                 }
                 _ => {}
             }
-            out.push(char);
+            writer.write_all(&[char])?;
             escaped = escape_here;
         } else {
             let mut auto_push = true;
@@ -39,65 +86,78 @@ pub fn format_json(json: &str, indentation: Option<&str>) -> String {
             let old_level = indent_level;
 
             match char {
-                '"' => in_string = true,
+                b'"' => in_string = true,
-                ' ' | '\n' | '\t' => continue,
+                b' ' | b'\n' | b'\r' | b'\t' => continue,
-                '[' => {
+                b'[' => {
                     indent_level += 1;
                     request_newline = true;
                 }
-                '{' => {
+                b'{' => {
                     indent_level += 1;
                     request_newline = true;
                 }
-                '}' | ']' => {
+                b'}' | b']' => {
-                    indent_level -= 1;
+                    indent_level = indent_level.saturating_sub(1);
                     if !newline_requested {
                         // see comment below about newline_requested
-                        out.push('\n');
+                        writer.write_all(b"\n")?;
-                        indent(&mut out, indent_level, indentation);
+                        indent(&mut writer, indent_level, indentation)?;
                     }
                 }
-                ':' => {
+                b':' => {
                     auto_push = false;
-                    out.push(char);
+                    writer.write_all(&[char])?;
-                    out.push(' ');
+                    writer.write_all(&[b' '])?;
                 }
-                ',' => {
+                b',' => {
                     request_newline = true;
                 }
                 _ => {}
             }
-            if newline_requested && char != ']' && char != '}' {
+            if newline_requested && char != b']' && char != b'}' {
                 // newline only happens after { [ and ,
                 // this means we can safely assume that it being followed up by } or ]
                 // means an empty object/array
-                out.push('\n');
+                writer.write_all(b"\n")?;
-                indent(&mut out, old_level, indentation);
+                indent(&mut writer, old_level, indentation)?;
             }
 
             if auto_push {
-                out.push(char);
+                writer.write_all(&[char])?;
             }
 
             newline_requested = request_newline;
         }
     }
 
-    out
+    // trailing newline
+    writer.write_all(b"\n")?;
+
+    Ok(())
 }
 
-fn indent(buf: &mut String, level: usize, indent_str: Option<&str>) {
+fn indent<W>(writer: &mut W, level: usize, indent_str: Indentation) -> io::Result<()>
+where
+    W: Write,
+{
     for _ in 0..level {
         match indent_str {
-            None => {
+            Indentation::TwoSpace => {
-                buf.push(' ');
+                writer.write_all(b"  ")?;
-                buf.push(' ');
             }
-            Some(indent) => {
+            Indentation::FourSpace => {
-                buf.push_str(indent);
+                writer.write_all(b"    ")?;
+            }
+            Indentation::Tab => {
+                writer.write_all(b"\t")?;
+            }
+            Indentation::Custom(indent) => {
+                writer.write_all(indent.as_bytes())?;
             }
         }
     }
+
+    Ok(())
 }
 
 #[cfg(test)]
@@ -106,28 +166,28 @@ mod test {
 
     #[test]
     fn echoes_primitive() {
-        let json = "1.35";
+        let json = "1.35\n";
-        assert_eq!(json, format_json(json, None));
+        assert_eq!(json, format(json, Indentation::TwoSpace));
     }
 
     #[test]
     fn ignore_whitespace_in_string() {
-        let json = "\" hallo \"";
+        let json = "\" hallo \"\n";
-        assert_eq!(json, format_json(json, None));
+        assert_eq!(json, format(json, Indentation::TwoSpace));
     }
 
     #[test]
     fn remove_leading_whitespace() {
         let json = "   0";
-        let expected = "0";
+        let expected = "0\n";
-        assert_eq!(expected, format_json(json, None));
+        assert_eq!(expected, format(json, Indentation::TwoSpace));
     }
 
     #[test]
     fn handle_escaped_strings() {
         let json = "  \" hallo \\\" \" ";
-        let expected = "\" hallo \\\" \"";
+        let expected = "\" hallo \\\" \"\n";
-        assert_eq!(expected, format_json(json, None));
+        assert_eq!(expected, format(json, Indentation::TwoSpace));
     }
 
     #[test]
@@ -135,8 +195,9 @@ mod test {
         let json = "{\"a\":0}";
         let expected = "{
   \"a\": 0
-}";
+}
-        assert_eq!(expected, format_json(json, None));
+";
+        assert_eq!(expected, format(json, Indentation::TwoSpace));
     }
 
     #[test]
@@ -146,8 +207,9 @@ mod test {
   1,
   2,
   null
-]";
+]
-        assert_eq!(expected, format_json(json, None));
+";
+        assert_eq!(expected, format(json, Indentation::TwoSpace));
     }
 
     #[test]
@@ -161,8 +223,42 @@ mod test {
   {
     \"a\": null
   }
-]";
+]
+";
 
-        assert_eq!(expected, format_json(json, None));
+        assert_eq!(expected, format(json, Indentation::TwoSpace));
+    }
+
+    #[test]
+    fn already_formatted() {
+        let expected = "[
+  {
+    \"a\": 0
+  },
+  {},
+  {
+    \"a\": null
+  }
+]
+";
+
+        assert_eq!(expected, format(expected, Indentation::TwoSpace));
+    }
+
+    #[test]
+    fn contains_crlf() {
+        let json = "[\r\n{\r\n\"a\":0\r\n},\r\n{},\r\n{\r\n\"a\": null\r\n}\r\n]\r\n";
+        let expected = "[
+  {
+    \"a\": 0
+  },
+  {},
+  {
+    \"a\": null
+  }
+]
+";
+
+        assert_eq!(expected, format(json, Indentation::TwoSpace));
     }
 }

src/main.rs

@@ -1,48 +0,0 @@
-use clap::clap_app;
-use jsonformat::format_json;
-use std::fs;
-use std::io;
-use std::io::Read;
-
-fn main() -> Result<(), io::Error> {
-    let matches = clap_app!(jsonformat =>
-        (version: "1.0")
-        (author: "nilstrieb <nilstrieb@gmail.com>")
-        (about: "Formats json from stdin or from a file")
-        (@arg indentation: -i --indent +takes_value "Set the indentation used (\\s for space, \\t for tab)")
-        (@arg output: -o --output +takes_value "The output file for the formatted json")
-        (@arg input: "The input file to format")
-    )
-    .get_matches();
-
-    let str = match matches.value_of("input") {
-        Some(path) => fs::read_to_string(path)?,
-        None => {
-            let mut buf = String::new();
-            let stdin = std::io::stdin();
-            stdin.lock().read_to_string(&mut buf)?;
-            buf
-        }
-    };
-
-    let replaced_indent = matches.value_of("indentation").map(|value| {
-        value
-            .to_lowercase()
-            .chars()
-            .filter(|c| ['s', 't'].contains(c))
-            .collect::<String>()
-            .replace("s", " ")
-            .replace("t", "\t")
-    });
-
-    let formatted = format_json(&str, replaced_indent.as_deref());
-
-    match matches.value_of("output") {
-        Some(file) => {
-            fs::write(file, formatted)?;
-        }
-        None => println!("{}", formatted),
-    }
-
-    Ok(())
-}