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

Reviewed-on: #2

Cargo.lock

@@ -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"
 version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
 
+[[package]]
+name = "encoding"
+version = "0.2.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b0d943856b990d12d3b55b359144ff341533e516d94098b1d3fc1ac666d36ec"
+dependencies = [
+ "encoding-index-japanese",
+ "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"

Cargo.toml

@@ -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"

README.md

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

src/lib.rs

@@ -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 {
+                match level {
-                    output.push_str("sub");
+                    -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(_)) => {
-            Event::End(Tag::Header(_)) => output.push_str("}\n"),
+                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) => {
+                // 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),
+        }
+    }
+}

src/main.rs

@@ -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")
+        .arg(
+            Arg::new("INPUT")
                 .long("input")
                 .short('i')
                 .help("Input markdown files")
                 .required(true)
-             .value_parser(clap::value_parser!(PathBuf))
+                .value_parser(clap::value_parser!(PathBuf)),
         )
-        .arg(Arg::new("OUTPUT")
+        .arg(
+            Arg::new("OUTPUT")
                 .long("output")
                 .short('o')
                 .help("Output tex or pdf file")
                 .required(true)
-             .value_parser(clap::value_parser!(PathBuf))
+                .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") => {
+        Some("pdf") => match markdown_to_pdf(content) {
-            match markdown_to_pdf(content) {
+            Ok(data) => match output.write(&data) {
-                Ok(data) => {
-                    match output.write(&data) {
                 Ok(_) => {
                     exit(0);
-                        },
+                }
                 Err(error) => {
-                            eprintln!(
+                    eprintln!("error while writing file: {}", error);
-                                "error while writing file: {}", error
-                            );
                     exit(1);
-                        },
                 }
             },
             Err(error) => {
-                    eprintln!(
+                eprintln!("error while compiling latex: {}", error.description());
-                        "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);
-        },
+        }
     }
 }