diff --git a/.travis.yml b/.travis.yml
index 29658ef..83ac520 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ rust:
   - stable
   - beta
   - nightly
-  - 1.32.0
+  - 1.34.0
 
 script:
   - cargo check
diff --git a/Cargo.lock b/Cargo.lock
index 2e003a4..c0cc2ef 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -94,28 +94,6 @@ dependencies = [
  "serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "bindgen"
-version = "0.50.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "cexpr 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "clang-sys 0.28.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "fxhash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "peeking_take_while 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "shlex 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "which 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "bitflags"
 version = "1.1.0"
@@ -150,6 +128,7 @@ name = "cargo-expand"
 version = "0.4.13"
 dependencies = [
  "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "onig 4.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "prettyprint 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -157,6 +136,7 @@ dependencies = [
  "structopt 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
  "syn-select 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntect 3.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -168,29 +148,11 @@ name = "cc"
 version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "cexpr"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "nom 4.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "cfg-if"
 version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "clang-sys"
-version = "0.28.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "libloading 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "clap"
 version = "2.33.0"
@@ -407,18 +369,6 @@ name = "encoding_index_tests"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "env_logger"
-version = "0.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "humantime 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "error-chain"
 version = "0.12.1"
@@ -469,14 +419,6 @@ name = "fuchsia-cprng"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "fxhash"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "getrandom"
 version = "0.1.10"
@@ -487,11 +429,6 @@ dependencies = [
  "wasi 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "glob"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "heck"
 version = "0.3.1"
@@ -533,15 +470,6 @@ name = "libc"
 version = "0.2.62"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "libloading"
-version = "0.5.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "line-wrap"
 version = "0.1.1"
@@ -563,14 +491,6 @@ dependencies = [
  "scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "log"
-version = "0.4.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "memchr"
 version = "2.2.1"
@@ -598,32 +518,22 @@ name = "nodrop"
 version = "0.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "nom"
-version = "4.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "onig"
-version = "5.0.0"
+version = "4.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "onig_sys 69.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "onig_sys 69.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "onig_sys"
-version = "69.2.0"
+version = "69.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bindgen 0.50.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -652,11 +562,6 @@ dependencies = [
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "peeking_take_while"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "pkg-config"
 version = "0.3.15"
@@ -697,7 +602,7 @@ dependencies = [
  "error-chain 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "shell-words 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntect 3.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntect 3.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -940,11 +845,6 @@ name = "shell-words"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "shlex"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "smallvec"
 version = "0.6.10"
@@ -1021,7 +921,7 @@ dependencies = [
 
 [[package]]
 name = "syntect"
-version = "3.2.1"
+version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bincode 1.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1030,7 +930,7 @@ dependencies = [
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "onig 5.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "onig 4.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "plist 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-syntax 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1150,15 +1050,6 @@ name = "wasi"
 version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "which"
-version = "2.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "winapi"
 version = "0.3.7"
@@ -1221,15 +1112,12 @@ dependencies = [
 "checksum backtrace-sys 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)" = "82a830b4ef2d1124a711c71d263c5abdc710ef8e907bd508c88be475cebc422b"
 "checksum base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0b25d992356d2eb0ed82172f5248873db5560c4721f564b13cb5193bda5e668e"
 "checksum bincode 1.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "9f04a5e50dc80b3d5d35320889053637d15011aed5e66b66b37ae798c65da6f7"
-"checksum bindgen 0.50.0 (registry+https://github.com/rust-lang/crates.io-index)" = "65a913de3fa2fa95f2c593bb7e33b1be1ce1ce8a83f34b6bb02e6f01400b96cc"
 "checksum bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3d155346769a6855b86399e9bc3814ab343cd3d62c7e985113d46a0ec3c281fd"
 "checksum blake2b_simd 0.5.7 (registry+https://github.com/rust-lang/crates.io-index)" = "bf775a81bb2d464e20ff170ac20316c7b08a43d11dbc72f0f82e8e8d3d6d0499"
 "checksum byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a7c3dd8985a7111efc5c80b44e23ecdd8c007de8ade3b96595387e812b957cf5"
 "checksum c2-chacha 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7d64d04786e0f528460fc884753cf8dddcc466be308f6026f8e355c41a0e4101"
 "checksum cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)" = "b548a4ee81fccb95919d4e22cfea83c7693ebfd78f0495493178db20b3139da7"
-"checksum cexpr 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "a7fa24eb00d5ffab90eaeaf1092ac85c04c64aaf358ea6f84505b8116d24c6af"
 "checksum cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
-"checksum clang-sys 0.28.1 (registry+https://github.com/rust-lang/crates.io-index)" = "81de550971c976f176130da4b2978d3b524eaa0fd9ac31f3ceb5ae1231fb4853"
 "checksum clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5067f5bb2d80ef5d68b4c87db81601f0b75bca627bc2ef76b141d7b846a3c6d9"
 "checksum clicolors-control 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "73abfd4c73d003a674ce5d2933fca6ce6c42480ea84a5ffe0a2dc39ed56300f9"
 "checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
@@ -1253,16 +1141,13 @@ dependencies = [
 "checksum encoding-index-singlebyte 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)" = "3351d5acffb224af9ca265f435b859c7c01537c0849754d3db3fdf2bfe2ae84a"
 "checksum encoding-index-tradchinese 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)" = "fd0e20d5688ce3cab59eb3ef3a2083a5c77bf496cb798dc6fcdb75f323890c18"
 "checksum encoding_index_tests 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a246d82be1c9d791c5dfde9a2bd045fc3cbba3fa2b11ad558f27d01712f00569"
-"checksum env_logger 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "aafcde04e90a5226a6443b7aabdb016ba2f8307c847d524724bd9b346dd1a2d3"
 "checksum error-chain 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3ab49e9dcb602294bc42f9a7dfc9bc6e936fca4418ea300dbfb84fe16de0b7d9"
 "checksum failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "795bd83d3abeb9220f257e597aa0080a508b27533824adf336529648f6abf7e2"
 "checksum failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "ea1063915fd7ef4309e222a5a07cf9c319fb9c7836b1f89b85458672dbb127e1"
 "checksum flate2 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)" = "2adaffba6388640136149e18ed080b77a78611c1e1d6de75aedcdf78df5d4682"
 "checksum fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "2fad85553e09a6f881f739c29f0b00b0f01357c743266d478b68951ce23285f3"
 "checksum fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
-"checksum fxhash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
 "checksum getrandom 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "6171a6cc63fbabbe27c2b5ee268e8b7fe5dc1eb0dd2dfad537c1dfed6f69117e"
-"checksum glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
 "checksum heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
 "checksum humantime 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3ca7e5f2e110db35f93b837c81797f3714500b81d517bf20c431b16d3ca4f114"
 "checksum ident_case 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
@@ -1270,21 +1155,17 @@ dependencies = [
 "checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
 "checksum lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
 "checksum libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)" = "34fcd2c08d2f832f376f4173a231990fa5aef4e99fb569867318a227ef4c06ba"
-"checksum libloading 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f2b111a074963af1d37a139918ac6d49ad1d0d5e47f72fd55388619691a7d753"
 "checksum line-wrap 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f30344350a2a51da54c1d53be93fade8a237e545dbcc4bdbe635413f2117cab9"
 "checksum linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ae91b68aebc4ddb91978b11a1b02ddd8602a05ec19002801c5666000e05e0f83"
 "checksum lock_api 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f8912e782533a93a167888781b836336a6ca5da6175c05944c86cf28c31104dc"
-"checksum log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
 "checksum memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
 "checksum miniz-sys 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "1e9e3ae51cea1576ceba0dde3d484d30e6e5b86dee0b2d412fe3a16a15c98202"
 "checksum miniz_oxide 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7108aff85b876d06f22503dcce091e29f76733b2bfdd91eebce81f5e68203a10"
 "checksum nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9667ddcc6cc8a43afc9b7917599d7216aa09c463919ea32c59ed6cac8bc945"
-"checksum nom 4.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2ad2a91a8e869eeb30b9cb3119ae87773a8f4ae617f41b1eb9c154b2905f7bd6"
-"checksum onig 5.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e4e723fc996fff1aeab8f62205f3e8528bf498bdd5eadb2784d2d31f30077947"
-"checksum onig_sys 69.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0a8d4efbf5f59cece01f539305191485b651acb3785b9d5eef05749f0496514e"
+"checksum onig 4.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8518fcb2b1b8c2f45f0ad499df4fda6087fc3475ca69a185c173b8315d2fb383"
+"checksum onig_sys 69.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388410bf5fa341f10e58e6db3975f4bea1ac30247dd79d37a9e5ced3cb4cc3b0"
 "checksum parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f842b1982eb6c2fe34036a4fbfb06dd185a3f5c8edfaacdf7d1ea10b07de6252"
 "checksum parking_lot_core 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b876b1b9e7ac6e1a74a6da34d25c42e17e8862aa409cbbbdcfc8d86c6f3bc62b"
-"checksum peeking_take_while 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
 "checksum pkg-config 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "a7c1d2cfa5a714db3b5f24f0915e74fcdf91d09d496ba61329705dda7774d2af"
 "checksum plist 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "5f2a9f075f6394100e7c105ed1af73fb1859d6fd14e49d4290d578120beb167f"
 "checksum ppv-lite86 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e3cbf9f658cdb5000fcf6f362b8ea2ba154b9f146a61c7a20d647034c6b6561b"
@@ -1320,7 +1201,6 @@ dependencies = [
 "checksum serde_derive 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)" = "cb4dc18c61206b08dc98216c98faa0232f4337e1e1b8574551d5bad29ea1b425"
 "checksum serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)" = "051c49229f282f7c6f3813f8286cc1e3323e8051823fce42c7ea80fe13521704"
 "checksum shell-words 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "39acde55a154c4cd3ae048ac78cc21c25f3a0145e44111b523279113dce0d94a"
-"checksum shlex 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7fdf1b9db47230893d76faad238fd6097fd6d6a9245cd7a4d90dbd639536bbd2"
 "checksum smallvec 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "ab606a9c5e214920bb66c458cd7be8ef094f813f20fe77a54cc7dbfff220d4b7"
 "checksum strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4f380125926a99e52bc279241539c018323fab05ad6368b56f93d9369ff550"
 "checksum strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
@@ -1330,7 +1210,7 @@ dependencies = [
 "checksum syn 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "158521e6f544e7e3dcfc370ac180794aa38cb34a1b1e07609376d4adcf429b93"
 "checksum syn-select 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "eae797fe9aa6ee5b478f3ae7b2ca1db303443853bcf65d6192e7f134124333a8"
 "checksum synstructure 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "02353edf96d6e4dc81aea2d8490a7e9db177bf8acb0e951c24940bf866cb313f"
-"checksum syntect 3.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fb5b18814fd5c81187d0b01b60a5b57e9577d6dc1e5e0b104443930005179e46"
+"checksum syntect 3.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e80b8831c5a543192ffc3727f01cf0e57579c6ac15558e3048bfb5708892167b"
 "checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "96d6098003bde162e4277c70665bd87c326f5a0c3f3fbfb285787fa482d54e6e"
 "checksum termios 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "72b620c5ea021d75a735c943269bb07d30c9b77d6ac6b236bc8b5c496ef05625"
@@ -1346,7 +1226,6 @@ dependencies = [
 "checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
 "checksum walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)" = "9658c94fa8b940eab2250bd5a457f9c48b748420d71293b165c8cdbe2f55f71e"
 "checksum wasi 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fd5442abcac6525a045cc8c795aedb60da7a2e5e89c7bf18a0d5357849bb23c7"
-"checksum which 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b57acb10231b9493c8472b20cb57317d0679a49e0bdbee44b3b803a6473af164"
 "checksum winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "f10e386af2b13e47c89e7236a7a14a086791a2b88ebad6df9bf42040195cf770"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 "checksum winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7168bab6e1daee33b4557efd0e95d5ca70a03706d39fa5f3fe7a236f584b03c9"
diff --git a/Cargo.toml b/Cargo.toml
index f99dd33..f1e13ab 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,12 +13,14 @@ readme = "README.md"
 
 [dependencies]
 atty = "0.2"
-prettyprint = "0.7"
+onig = "=4.3.3"
+prettyprint = "=0.7.0"
 proc-macro2 = "0.4"
 quote = { version = "0.6", default-features = false }
 serde = { version = "1.0", features = ["derive"] }
 structopt = "0.2"
 syn-select = "0.1.4"
+syntect = "=3.2.0"
 tempfile = "3.0"
 termcolor = "1.0"
 toml = "0.5"