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Merge pull request 'Add tests' (#2) from williamdes/md2pdf:improvements into master 

Reviewed-on: #2
This commit is contained in:
tforgione 2022-10-03 17:51:28 +02:00
parent ac0585c078 4098a41444
commit e21c9a7619
5 changed files with 756 additions and 64 deletions
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357
Cargo.lock generated
View File

@ -94,6 +94,12 @@ dependencies = [
"rustc-demangle",
]
[[package]]
name = "base-x"
version = "0.2.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4cbbc9d0964165b47557570cce6c952866c2678457aca742aafc9fb771d30270"
[[package]]
name = "base64"
version = "0.13.0"
@ -191,8 +197,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bfd4d1b31faaa3a89d7934dbded3111da0d2ef28e3ebccdb4f0179f5929d1ef1"
dependencies = [
"iana-time-zone",
"js-sys",
"num-integer",
"num-traits",
"time 0.1.44",
"wasm-bindgen",
"winapi 0.3.9",
]
@ -289,6 +298,21 @@ dependencies = [
"winapi 0.3.9",
]
[[package]]
name = "const_fn"
version = "0.4.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fbdcdcb6d86f71c5e97409ad45898af11cbc995b4ee8112d59095a28d376c935"
[[package]]
name = "convert_case"
version = "0.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ec182b0ca2f35d8fc196cf3404988fd8b8c739a4d270ff118a398feb0cbec1ca"
dependencies = [
"unicode-segmentation",
]
[[package]]
name = "core-foundation"
version = "0.9.3"
@ -342,6 +366,16 @@ dependencies = [
"typenum",
]
[[package]]
name = "ctor"
version = "0.1.23"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cdffe87e1d521a10f9696f833fe502293ea446d7f256c06128293a4119bdf4cb"
dependencies = [
"quote",
"syn",
]
[[package]]
name = "darling"
version = "0.12.4"
@ -414,6 +448,12 @@ version = "0.4.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "850878694b7933ca4c9569d30a34b55031b9b139ee1fc7b94a527c4ef960d690"
[[package]]
name = "diff"
version = "0.1.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "56254986775e3233ffa9c4d7d3faaf6d36a2c09d30b20687e9f88bc8bafc16c8"
[[package]]
name = "digest"
version = "0.9.0"
@ -463,12 +503,88 @@ dependencies = [
"winapi 0.3.9",
]
[[package]]
name = "discard"
version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "212d0f5754cb6769937f4501cc0e67f4f4483c8d2c3e1e922ee9edbe4ab4c7c0"
[[package]]
name = "dtoa"
version = "0.4.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "56899898ce76aaf4a0f24d914c97ea6ed976d42fec6ad33fcbb0a1103e07b2b0"
[[package]]
name = "either"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6b0d943856b990d12d3b55b359144ff341533e516d94098b1d3fc1ac666d36ec"
dependencies = [
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"encoding-index-korean",
"encoding-index-simpchinese",
"encoding-index-singlebyte",
"encoding-index-tradchinese",
]
[[package]]
name = "encoding-index-japanese"
version = "1.20141219.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "04e8b2ff42e9a05335dbf8b5c6f7567e5591d0d916ccef4e0b1710d32a0d0c91"
dependencies = [
"encoding_index_tests",
]
[[package]]
name = "encoding-index-korean"
version = "1.20141219.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4dc33fb8e6bcba213fe2f14275f0963fd16f0a02c878e3095ecfdf5bee529d81"
dependencies = [
"encoding_index_tests",
]
[[package]]
name = "encoding-index-simpchinese"
version = "1.20141219.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d87a7194909b9118fc707194baa434a4e3b0fb6a5a757c73c3adb07aa25031f7"
dependencies = [
"encoding_index_tests",
]
[[package]]
name = "encoding-index-singlebyte"
version = "1.20141219.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3351d5acffb224af9ca265f435b859c7c01537c0849754d3db3fdf2bfe2ae84a"
dependencies = [
"encoding_index_tests",
]
[[package]]
name = "encoding-index-tradchinese"
version = "1.20141219.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fd0e20d5688ce3cab59eb3ef3a2083a5c77bf496cb798dc6fcdb75f323890c18"
dependencies = [
"encoding_index_tests",
]
[[package]]
name = "encoding_index_tests"
version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a246d82be1c9d791c5dfde9a2bd045fc3cbba3fa2b11ad558f27d01712f00569"
[[package]]
name = "encoding_rs"
version = "0.8.31"
@ -771,7 +887,7 @@ checksum = "75f43d41e26995c17e71ee126451dd3941010b0514a81a9d11f3b341debc2399"
dependencies = [
"bytes",
"fnv",
"itoa",
"itoa 1.0.3",
]
[[package]]
@ -818,7 +934,7 @@ dependencies = [
"http-body",
"httparse",
"httpdate",
"itoa",
"itoa 1.0.3",
"pin-project-lite",
"socket2",
"tokio",
@ -941,6 +1057,12 @@ version = "2.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "879d54834c8c76457ef4293a689b2a8c59b076067ad77b15efafbb05f92a592b"
[[package]]
name = "itoa"
version = "0.4.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b71991ff56294aa922b450139ee08b3bfc70982c6b2c7562771375cf73542dd4"
[[package]]
name = "itoa"
version = "1.0.3"
@ -1015,6 +1137,12 @@ dependencies = [
"vcpkg",
]
[[package]]
name = "linked-hash-map"
version = "0.5.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
[[package]]
name = "log"
version = "0.4.17"
@ -1024,6 +1152,25 @@ dependencies = [
"cfg-if 1.0.0",
]
[[package]]
name = "lopdf"
version = "0.27.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8146695b97752d9c66da0092c6364f8f3ca683f5ea34341db21e5550c3b8c4f4"
dependencies = [
"chrono",
"dtoa",
"encoding",
"flate2",
"itoa 0.4.8",
"lazy_static",
"linked-hash-map",
"log",
"pom",
"time 0.2.27",
"weezl",
]
[[package]]
name = "md-5"
version = "0.9.1"
@ -1040,6 +1187,9 @@ name = "md2pdf"
version = "0.0.3"
dependencies = [
"clap 4.0.8",
"convert_case",
"lopdf",
"pretty_assertions",
"pulldown-cmark",
"tectonic",
]
@ -1327,6 +1477,15 @@ version = "6.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9ff7415e9ae3fff1225851df9e0d9e4e5479f947619774677a63572e55e80eff"
[[package]]
name = "output_vt100"
version = "0.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "628223faebab4e3e40667ee0b2336d34a5b960ff60ea743ddfdbcf7770bcfb66"
dependencies = [
"winapi 0.3.9",
]
[[package]]
name = "parse-zoneinfo"
version = "0.3.0"
@ -1389,7 +1548,7 @@ checksum = "4c8717927f9b79515e565a64fe46c38b8cd0427e64c40680b14a7365ab09ac8d"
dependencies = [
"once_cell",
"pest",
"sha1",
"sha1 0.10.5",
]
[[package]]
@ -1493,12 +1652,30 @@ version = "0.3.25"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
[[package]]
name = "pom"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "07e2192780e9f8e282049ff9bffcaa28171e1cb0844f49ed5374e518ae6024ec"
[[package]]
name = "ppv-lite86"
version = "0.2.16"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
[[package]]
name = "pretty_assertions"
version = "1.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a25e9bcb20aa780fd0bb16b72403a9064d6b3f22f026946029acb941a50af755"
dependencies = [
"ctor",
"diff",
"output_vt100",
"yansi",
]
[[package]]
name = "proc-macro-error"
version = "1.0.4"
@ -1523,6 +1700,12 @@ dependencies = [
"version_check",
]
[[package]]
name = "proc-macro-hack"
version = "0.5.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
[[package]]
name = "proc-macro2"
version = "1.0.46"
@ -1732,6 +1915,15 @@ version = "0.1.21"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7ef03e0a2b150c7a90d01faf6254c9c48a41e95fb2a8c2ac1c6f0d2b9aefc342"
[[package]]
name = "rustc_version"
version = "0.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
dependencies = [
"semver",
]
[[package]]
name = "ryu"
version = "1.0.11"
@ -1780,6 +1972,21 @@ dependencies = [
"libc",
]
[[package]]
name = "semver"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
dependencies = [
"semver-parser",
]
[[package]]
name = "semver-parser"
version = "0.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
[[package]]
name = "serde"
version = "1.0.145"
@ -1806,7 +2013,7 @@ version = "1.0.85"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e55a28e3aaef9d5ce0506d0a14dbba8054ddc7e499ef522dd8b26859ec9d4a44"
dependencies = [
"itoa",
"itoa 1.0.3",
"ryu",
"serde",
]
@ -1818,11 +2025,20 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
dependencies = [
"form_urlencoded",
"itoa",
"itoa 1.0.3",
"ryu",
"serde",
]
[[package]]
name = "sha1"
version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c1da05c97445caa12d05e848c4a4fcbbea29e748ac28f7e80e9b010392063770"
dependencies = [
"sha1_smol",
]
[[package]]
name = "sha1"
version = "0.10.5"
@ -1834,6 +2050,12 @@ dependencies = [
"digest 0.10.5",
]
[[package]]
name = "sha1_smol"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ae1a47186c03a32177042e55dbc5fd5aee900b8e0069a8d70fba96a9375cd012"
[[package]]
name = "sha2"
version = "0.9.9"
@ -1881,6 +2103,64 @@ dependencies = [
"winapi 0.3.9",
]
[[package]]
name = "standback"
version = "0.2.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e113fb6f3de07a243d434a56ec6f186dfd51cb08448239fe7bcae73f87ff28ff"
dependencies = [
"version_check",
]
[[package]]
name = "stdweb"
version = "0.4.20"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d022496b16281348b52d0e30ae99e01a73d737b2f45d38fed4edf79f9325a1d5"
dependencies = [
"discard",
"rustc_version",
"stdweb-derive",
"stdweb-internal-macros",
"stdweb-internal-runtime",
"wasm-bindgen",
]
[[package]]
name = "stdweb-derive"
version = "0.5.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c87a60a40fccc84bef0652345bbbbbe20a605bf5d0ce81719fc476f5c03b50ef"
dependencies = [
"proc-macro2",
"quote",
"serde",
"serde_derive",
"syn",
]
[[package]]
name = "stdweb-internal-macros"
version = "0.2.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "58fa5ff6ad0d98d1ffa8cb115892b6e69d67799f6763e162a1c9db421dc22e11"
dependencies = [
"base-x",
"proc-macro2",
"quote",
"serde",
"serde_derive",
"serde_json",
"sha1 0.6.1",
"syn",
]
[[package]]
name = "stdweb-internal-runtime"
version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "213701ba3370744dcd1a12960caa4843b3d68b4d1c0a5d575e0d65b2ee9d16c0"
[[package]]
name = "strsim"
version = "0.8.0"
@ -2319,6 +2599,55 @@ dependencies = [
"once_cell",
]
[[package]]
name = "time"
version = "0.1.44"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
dependencies = [
"libc",
"wasi 0.10.0+wasi-snapshot-preview1",
"winapi 0.3.9",
]
[[package]]
name = "time"
version = "0.2.27"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4752a97f8eebd6854ff91f1c1824cd6160626ac4bd44287f7f4ea2035a02a242"
dependencies = [
"const_fn",
"libc",
"standback",
"stdweb",
"time-macros",
"version_check",
"winapi 0.3.9",
]
[[package]]
name = "time-macros"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "957e9c6e26f12cb6d0dd7fc776bb67a706312e7299aed74c8dd5b17ebb27e2f1"
dependencies = [
"proc-macro-hack",
"time-macros-impl",
]
[[package]]
name = "time-macros-impl"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fd3c141a1b43194f3f56a1411225df8646c55781d5f26db825b3d98507eb482f"
dependencies = [
"proc-macro-hack",
"proc-macro2",
"quote",
"standback",
"syn",
]
[[package]]
name = "tinyvec"
version = "1.6.0"
@ -2591,6 +2920,12 @@ version = "0.9.0+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
[[package]]
name = "wasi"
version = "0.10.0+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
[[package]]
name = "wasi"
version = "0.11.0+wasi-snapshot-preview1"
@ -2692,6 +3027,12 @@ dependencies = [
"wasm-bindgen",
]
[[package]]
name = "weezl"
version = "0.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9193164d4de03a926d909d3bc7c30543cecb35400c02114792c2cae20d5e2dbb"
[[package]]
name = "which"
version = "4.3.0"
@ -2817,6 +3158,12 @@ dependencies = [
"dirs 4.0.0",
]
[[package]]
name = "yansi"
version = "0.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"
[[package]]
name = "zip"
version = "0.5.13"

5
Cargo.toml
View File

@ -14,6 +14,7 @@ readme = "README.md"
tectonic = "0.9"
pulldown-cmark = "0.5.3"
clap = { version = "4.0.7", features = ["cargo"] }
convert_case = "0.6.0"
[lib]
name = "md2pdf"
@ -22,3 +23,7 @@ path = "src/lib.rs"
[[bin]]
name = "md2pdf"
path = "src/main.rs"
[dev-dependencies]
pretty_assertions = "1.3.0"
lopdf = "0.27.0"

2
README.md
View File

@ -5,7 +5,7 @@
### Usage
```
```sh
md2pdf -i input.md -o output.pdf
```

372
src/lib.rs
View File

@ -1,6 +1,7 @@
use convert_case::{Case, Casing};
use pulldown_cmark::{Event, Parser, Tag};
pub const LATEX_HEADER:&str = r#"\documentclass{scrartcl}
pub const LATEX_HEADER: &str = r#"\documentclass{scrartcl}
\usepackage{graphicx}
\usepackage{hyperref}
\usepackage{listings}
@ -41,26 +42,83 @@ pub const LATEX_HEADER:&str = r#"\documentclass{scrartcl}
pub const LATEX_FOOTER: &str = "\n\\end{document}\n";
/// Used to keep track of current pulldown_cmark "event".
/// TODO: Is there a native pulldown_cmark method to do this?
#[derive(Debug)]
enum EventType {
//Code,
Emphasis,
Header,
//Html,
Strong,
Table,
TableHead,
Text,
}
struct CurrentType {
event_type: EventType,
}
/**
* Part of this function is Copyright Liam Beckman <liam@liambeckman.com> (license: MPL-2.0)
* Source: https://github.com/lbeckman314/md2tex/blob/25fa878ccce122c224c24659ee1c1dd30c8a5d51/src/lib.rs
*
*/
pub fn markdown_to_latex(markdown: String) -> String {
let mut output = String::from(LATEX_HEADER);
let parser = Parser::new(&markdown);
let mut header_value = String::new();
let mut current: CurrentType = CurrentType {
event_type: EventType::Text,
};
let mut cells = 0;
let mut equation_mode = false;
let mut buffer = String::new();
for event in parser {
match event {
Event::Start(Tag::Header(level)) => {
current.event_type = EventType::Header;
output.push_str("\n");
output.push_str("\\");
for _ in 1 .. level {
output.push_str("sub");
match level {
-1 => output.push_str("part{"),
0 => output.push_str("chapter{"),
1 => output.push_str("section{"),
2 => output.push_str("subsection{"),
3 => output.push_str("subsubsection{"),
4 => output.push_str("paragraph{"),
5 => output.push_str("subparagraph{"),
_ => eprintln!("header is out of range."),
}
output.push_str("section{");
},
Event::End(Tag::Header(_)) => output.push_str("}\n"),
}
Event::End(Tag::Header(_)) => {
output.push_str("}\n");
output.push_str("\\");
output.push_str("label{");
output.push_str(&header_value);
output.push_str("}\n");
Event::Start(Tag::Emphasis) => output.push_str("\\emph{"),
output.push_str("\\");
output.push_str("label{");
output.push_str(&header_value.to_case(Case::Kebab));
output.push_str("}\n");
}
Event::Start(Tag::Emphasis) => {
current.event_type = EventType::Emphasis;
output.push_str("\\emph{");
}
Event::End(Tag::Emphasis) => output.push_str("}"),
Event::Start(Tag::Strong) => output.push_str("\\textbf{"),
Event::Start(Tag::Strong) => {
current.event_type = EventType::Strong;
output.push_str("\\textbf{");
}
Event::End(Tag::Strong) => output.push_str("}"),
Event::Start(Tag::List(None)) => output.push_str("\\begin{itemize}\n"),
@ -69,16 +127,116 @@ pub fn markdown_to_latex(markdown: String) -> String {
Event::Start(Tag::List(Some(_))) => output.push_str("\\begin{enumerate}\n"),
Event::End(Tag::List(Some(_))) => output.push_str("\\end{enumerate}\n"),
Event::Start(Tag::Paragraph) => {
output.push_str("\n");
}
Event::End(Tag::Paragraph) => {
// ~ adds a space to prevent
// "There's no line here to end" error on empty lines.
output.push_str(r"~\\");
output.push_str("\n");
}
Event::Start(Tag::Link(_, url, _)) => {
output.push_str("\\href{");
output.push_str(&*url);
output.push_str("}{");
},
}
Event::End(Tag::Link(_, _, _)) => {
output.push_str("}");
}
Event::Start(Tag::Table(_)) => {
current.event_type = EventType::Table;
let table_start = vec![
"\n",
r"\begingroup",
r"\setlength{\LTleft}{-20cm plus -1fill}",
r"\setlength{\LTright}{\LTleft}",
r"\begin{longtable}{!!!}",
r"\hline",
r"\hline",
"\n",
];
for element in table_start {
output.push_str(element);
output.push_str("\n");
}
}
Event::Start(Tag::TableHead) => {
current.event_type = EventType::TableHead;
}
Event::End(Tag::TableHead) => {
output.truncate(output.len() - 2);
output.push_str(r"\\");
output.push_str("\n");
output.push_str(r"\hline");
output.push_str("\n");
// we presume that a table follows every table head.
current.event_type = EventType::Table;
}
Event::End(Tag::Table(_)) => {
let table_end = vec![
r"\arrayrulecolor{black}\hline",
r"\end{longtable}",
r"\endgroup",
"\n",
];
for element in table_end {
output.push_str(element);
output.push_str("\n");
}
let mut cols = String::new();
for _i in 0..cells {
cols.push_str(&format!(
r"C{{{width}\textwidth}} ",
width = 1. / cells as f64
));
}
output = output.replace("!!!", &cols);
cells = 0;
current.event_type = EventType::Text;
}
Event::Start(Tag::TableCell) => match current.event_type {
EventType::TableHead => {
output.push_str(r"\bfseries{");
}
_ => (),
},
Event::End(Tag::TableCell) => {
match current.event_type {
EventType::TableHead => {
output.push_str(r"}");
cells += 1;
}
_ => (),
}
output.push_str(" & ");
}
Event::Start(Tag::TableRow) => {
current.event_type = EventType::Table;
}
Event::End(Tag::TableRow) => {
output.truncate(output.len() - 2);
output.push_str(r"\\");
output.push_str(r"\arrayrulecolor{lightgray}\hline");
output.push_str("\n");
}
Event::Start(Tag::Image(_, path, title)) => {
output.push_str("\\begin{figure}\n");
output.push_str("\\centering\n");
@ -88,32 +246,105 @@ pub fn markdown_to_latex(markdown: String) -> String {
output.push_str("\\caption{");
output.push_str(&*title);
output.push_str("}\n\\end{figure}\n");
},
}
Event::Start(Tag::Item) => output.push_str("\\item "),
Event::End(Tag::Item) => output.push_str("\n"),
Event::Start(Tag::CodeBlock(lang)) => {
if ! lang.is_empty() {
if !lang.is_empty() {
output.push_str("\\begin{lstlisting}[language=");
output.push_str(&*lang);
output.push_str("]\n");
} else {
output.push_str("\\begin{lstlisting}\n");
}
},
}
Event::End(Tag::CodeBlock(_)) => {
output.push_str("\n\\end{lstlisting}\n");
},
current.event_type = EventType::Text;
}
Event::Code(t) => {
output.push_str("\\lstinline|");
match current.event_type {
EventType::Header => output
.push_str(&*t.replace("#", r"\#").replace("…", "...").replace("З", "3")),
_ => output
.push_str(&*t.replace("…", "...").replace("З", "3").replace("<EFBFBD>", r"\<5C>")),
}
output.push_str("|");
}
Event::Text(t) => {
output.push_str(&*t);
},
// if "\(" or "\[" are encountered, then begin equation
// and don't replace any characters.
let delim_start = vec![r"\(", r"\["];
let delim_end = vec![r"\)", r"\]"];
if buffer.len() > 100 {
buffer.clear();
}
buffer.push_str(&t.clone().into_string());
match current.event_type {
EventType::Strong
| EventType::Emphasis
| EventType::Text
| EventType::Header
| EventType::Table => {
// TODO more elegant way to do ordered `replace`s (structs?).
if delim_start
.into_iter()
.any(|element| buffer.contains(element))
{
let popped = output.pop().unwrap();
if popped != '\\' {
output.push(popped);
}
output.push_str(&*t);
equation_mode = true;
} else if delim_end
.into_iter()
.any(|element| buffer.contains(element))
|| equation_mode == true
{
let popped = output.pop().unwrap();
if popped != '\\' {
output.push(popped);
}
output.push_str(&*t);
equation_mode = false;
} else {
output.push_str(
&*t.replace(r"\", r"\\")
.replace("&", r"\&")
.replace(r"\s", r"\textbackslash{}s")
.replace(r"\w", r"\textbackslash{}w")
.replace("_", r"\_")
.replace(r"\<", "<")
.replace(r"%", r"\%")
.replace(r"$", r"\$")
.replace(r"—", "---")
.replace("#", r"\#"),
);
}
header_value = t.into_string();
}
_ => output.push_str(&*t),
}
}
Event::SoftBreak => {
output.push('\n');
},
}
Event::HardBreak => {
output.push_str(r"\\");
output.push('\n');
}
_ => (),
}
@ -128,3 +359,112 @@ pub fn markdown_to_pdf(markdown: String) -> Result<Vec<u8>, tectonic::Error> {
tectonic::latex_to_pdf(markdown_to_latex(markdown))
}
#[cfg(test)]
mod tests {
use super::{markdown_to_latex, markdown_to_pdf};
use lopdf::Document;
use pretty_assertions::assert_eq;
use std::io::Cursor;
const MARKDOWN_IN: &str = r#"# First title
Some content
## Second level
Text
[link](https://example.com)
**Bold**
__Italic__
some code:
```sh
sudo make-it-work
```
issue [#12345](https://example.com)
"#;
const LATEXT_OUT: &str = r#"\documentclass{scrartcl}
\usepackage{graphicx}
\usepackage{hyperref}
\usepackage{listings}
\usepackage{xcolor}
\definecolor{colKeys}{rgb}{0,0.5,0}
\definecolor{colIdentifier}{rgb}{0,0,0}
\definecolor{colComments}{rgb}{0,0.5,1}
\definecolor{colString}{rgb}{0.6,0.1,0.1}
\definecolor{colBackground}{rgb}{0.95,0.95,1}
\lstset{%configuration de listings
float=hbp,%
basicstyle=\ttfamily\small,%
%
identifierstyle=\color{colIdentifier}, %
keywordstyle=\color{colKeys}, %
stringstyle=\color{colString}, %
commentstyle=\color{colComments}\textit, %
%
backgroundcolor=\color{colBackground},%
%
columns=flexible, %
tabsize=2, %
frame=trbl, %
%frameround=tttt,%
extendedchars=true, %
showspaces=false, %
showstringspaces=false, %
numbers=left, %
numberstyle=\tiny, %
breaklines=true, %
breakautoindent=true, %
captionpos=b,%
xrightmargin=0.2cm, %
xleftmargin=0.2cm
}
\begin{document}
\section{First title}
\label{First title}
\label{first-title}
Some content~\\
\subsection{Second level}
\label{Second level}
\label{second-level}
Text
\href{https://example.com}{link}
\textbf{Bold}
\textbf{Italic}~\\
some code:~\\
\begin{lstlisting}[language=sh]
sudo make-it-work
\end{lstlisting}
issue \href{https://example.com}{\#12345}~\\
\end{document}
"#;
#[test]
fn test_md_to_latex() {
let output = markdown_to_latex(MARKDOWN_IN.to_string());
assert_eq!(LATEXT_OUT, output);
}
#[test]
fn test_latex_to_pdf() {
let output = markdown_to_pdf(MARKDOWN_IN.to_string());
match output {
Ok(data) => {
let mut file = Cursor::new(data);
match Document::load_from(&mut file) {
Ok(doc) => {
assert_eq!("1.5", doc.version);
}
Err(_) => assert!(true),
}
}
Err(_) => assert!(true),
}
}
}

84
src/main.rs
View File

@ -1,10 +1,10 @@
use std::ffi::OsStr;
use std::fs::File;
use std::io::{Read, Write};
use std::process::exit;
use std::path::PathBuf;
use std::ffi::OsStr;
use std::process::exit;
use clap::{crate_authors, crate_description, crate_name, crate_version, Command, Arg};
use clap::{crate_authors, crate_description, crate_name, crate_version, Arg, Command};
use md2pdf::{markdown_to_latex, markdown_to_pdf};
@ -17,36 +17,40 @@ macro_rules! unwrap {
exit(1);
}
}
}
};
}
fn main() {
let matches = Command::new(crate_name!())
.bin_name(crate_name!())
.version(crate_version!())
.author(crate_authors!("\n"))
.about(crate_description!())
.arg(Arg::new("INPUT")
.long("input")
.short('i')
.help("Input markdown files")
.required(true)
.value_parser(clap::value_parser!(PathBuf))
)
.arg(Arg::new("OUTPUT")
.long("output")
.short('o')
.help("Output tex or pdf file")
.required(true)
.value_parser(clap::value_parser!(PathBuf))
)
.arg(
Arg::new("INPUT")
.long("input")
.short('i')
.help("Input markdown files")
.required(true)
.value_parser(clap::value_parser!(PathBuf)),
)
.arg(
Arg::new("OUTPUT")
.long("output")
.short('o')
.help("Output tex or pdf file")
.required(true)
.value_parser(clap::value_parser!(PathBuf)),
)
.get_matches();
let input_path = matches.get_one::<PathBuf>("INPUT").unwrap();
let mut content = String::new();
let mut input = unwrap!(File::open(input_path), "couldn't open input file");
unwrap!(input.read_to_string(&mut content), "couldn't read file content");
unwrap!(
input.read_to_string(&mut content),
"couldn't read file content"
);
let output_path = matches.get_one::<PathBuf>("OUTPUT").unwrap();
let output_path_ext = output_path.extension().and_then(OsStr::to_str);
@ -56,37 +60,33 @@ fn main() {
Some("tex") => {
let tex = markdown_to_latex(content);
unwrap!(output.write(tex.as_bytes()), "couldn't write output file");
},
Some("pdf") => {
match markdown_to_pdf(content) {
Ok(data) => {
match output.write(&data) {
Ok(_) => {
exit(0);
},
Err(error) => {
eprintln!(
"error while writing file: {}", error
);
exit(1);
},
}
},
}
Some("pdf") => match markdown_to_pdf(content) {
Ok(data) => match output.write(&data) {
Ok(_) => {
exit(0);
}
Err(error) => {
eprintln!(
"error while compiling latex: {}", error.description()
);
eprintln!("error while writing file: {}", error);
exit(1);
}
},
Err(error) => {
eprintln!("error while compiling latex: {}", error.description());
exit(1);
}
},
Some(ext) => {
eprintln!("unknown file format ({}) for output: {}", ext, output_path.display());
eprintln!(
"unknown file format ({}) for output: {}",
ext,
output_path.display()
);
exit(1);
},
}
None => {
eprintln!("unknown file format for output: {}", output_path.display());
exit(1);
},
}
}
}