parse_transform.rs: Start a lalrpop parser for the "transform" attribute

parent d9315d14
......@@ -7,10 +7,52 @@ dependencies = [
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[[package]]
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[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
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version = "0.4.0"
......@@ -53,11 +95,32 @@ dependencies = [
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "diff"
version = "0.1.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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"rustc-serialize 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)",
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[[package]]
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version = "1.0.0"
source = "git+https://github.com/marcianx/downcast-rs#5ace99daf704b91f2eeab366b67b78b368d51884"
[[package]]
name = "fixedbitset"
version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "glib"
version = "0.1.1"
......@@ -90,38 +153,296 @@ dependencies = [
"pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "itertools"
version = "0.3.25"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "kernel32-sys"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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[[package]]
name = "lalrpop"
version = "0.12.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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......@@ -2,6 +2,7 @@
name = "rsvg_internals"
version = "0.0.1"
authors = ["Federico Mena Quintero <federico@gnome.org>"]
build = "build.rs"
[dependencies]
libc = "0.2"
......@@ -32,6 +33,15 @@ features = ["verbose-errors"]
git = "https://github.com/marcianx/downcast-rs"
version = "1.0.0"
[dependencies.regex]
version = "0.2.1"
[dependencies.lalrpop-util]
version = "0.12.5"
[build-dependencies.lalrpop]
version = "0.12.5"
[lib]
name = "rsvg_internals"
crate-type = ["staticlib"]
......@@ -114,6 +114,7 @@ mod marker;
mod node;
mod paint_server;
mod parsers;
mod parse_transform;
mod path_builder;
mod path_parser;
mod pattern;
......
//-*- rust -*-
use std::str::FromStr;
grammar;
pub Num: f64 = <s:r"[+-]?([0-9]*\.[0-9]+|[0-9]+(\.[0-9]*)?)([Ee][+-]?[0-9]+)?"> => f64::from_str (s).unwrap ();
......@@ -2,6 +2,8 @@ use nom::{IResult, double, is_alphabetic};
use std::str;
use std::f64::consts::*;
use parse_transform::*;
// I don't know how to copy a nom::IError for long-term storage
// (i.e. when it can no longer reference the &[u8]). So, we explode a
// nom::IError into a simple error struct that can be passed around.
......@@ -263,3 +265,25 @@ mod tests {
assert! (angle_degrees ("300foo").is_err ());
}
}
#[cfg(test)]
mod parse_transform_tests {
#[test]
fn parses_numbers () {
assert_eq! (parse_Num ("0"), Ok (0.0));
assert_eq! (parse_Num ("12345"), Ok (12345.0));
assert_eq! (parse_Num ("-123"), Ok (-123.0));
assert_eq! (parse_Num ("-123.25"), Ok (-123.25));
assert_eq! (parse_Num ("123.25"), Ok (123.25));
assert_eq! (parse_Num ("-.25"), Ok (-0.25));
assert_eq! (parse_Num (".25"), Ok (0.25));
assert_eq! (parse_Num ("-25."), Ok (-25.0));
assert_eq! (parse_Num ("25."), Ok (25.0));
assert_eq! (parse_Num ("22.5e1"), Ok (225.0));
assert_eq! (parse_Num ("-22.5e1"), Ok (-225.0));
assert_eq! (parse_Num ("-123.45e2"), Ok (-12345.0));
assert_eq! (parse_Num ("123.45E2"), Ok (12345.0));
assert_eq! (parse_Num ("-123.25e-2"), Ok (-1.2325));
assert_eq! (parse_Num ("123.25E-2"), Ok (1.2325));
}
}
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