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Auto merge of #16692 - nox:justify-items, r=emilio

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Try to parse legacy before overflow for JustifyItems

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This commit is contained in:
bors-servo 2017-05-02 07:38:46 -05:00 • committed by GitHub
commit 688733a0be
1 changed files with 22 additions and 32 deletions
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54
components/style/values/specified/align.rs
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@ -332,21 +332,21 @@ impl Parse for JustifyItems {
if let Ok(value) = input.try(parse_auto_normal_stretch_baseline) {
return Ok(JustifyItems(value))
}
// [ <overflow-position>? && <self-position> ]
if let Ok(value) = input.try(parse_overflow_self_position) {
return Ok(JustifyItems(value))
}
// [ legacy && [ left | right | center ] ]
if let Ok(value) = input.try(parse_legacy) {
return Ok(JustifyItems(value))
}
// [ <overflow-position>? && <self-position> ]
if let Ok(value) = parse_overflow_self_position(input) {
return Ok(JustifyItems(value))
}
Err(())
}
}
// auto | normal | stretch | <baseline-position>
fn parse_auto_normal_stretch_baseline(input: &mut Parser) -> Result<AlignFlags, ()> {
if let Ok(baseline) = input.try(|input| parse_baseline(input)) {
if let Ok(baseline) = input.try(parse_baseline) {
return Ok(baseline);
}
@ -361,7 +361,7 @@ fn parse_auto_normal_stretch_baseline(input: &mut Parser) -> Result<AlignFlags,
// normal | stretch | <baseline-position>
fn parse_normal_stretch_baseline(input: &mut Parser) -> Result<AlignFlags, ()> {
if let Ok(baseline) = input.try(|input| parse_baseline(input)) {
if let Ok(baseline) = input.try(parse_baseline) {
return Ok(baseline);
}
@ -375,7 +375,7 @@ fn parse_normal_stretch_baseline(input: &mut Parser) -> Result<AlignFlags, ()> {
// normal | <baseline-position>
fn parse_normal_or_baseline(input: &mut Parser) -> Result<AlignFlags, ()> {
if let Ok(baseline) = input.try(|input| parse_baseline(input)) {
if let Ok(baseline) = input.try(parse_baseline) {
return Ok(baseline);
}
@ -391,18 +391,8 @@ fn parse_baseline(input: &mut Parser) -> Result<AlignFlags, ()> {
let ident = input.expect_ident()?;
match_ignore_ascii_case! { &ident,
"baseline" => Ok(ALIGN_BASELINE),
"first" => {
if input.try(|input| input.expect_ident_matching("baseline")).is_ok() {
return Ok(ALIGN_BASELINE);
}
Err(())
},
"last" => {
if input.try(|input| input.expect_ident_matching("baseline")).is_ok() {
return Ok(ALIGN_LAST_BASELINE);
}
Err(())
},
"first" => input.expect_ident_matching("baseline").map(|_| ALIGN_BASELINE),
"last" => input.expect_ident_matching("baseline").map(|_| ALIGN_LAST_BASELINE),
_ => Err(())
}
}
@ -411,26 +401,26 @@ fn parse_baseline(input: &mut Parser) -> Result<AlignFlags, ()> {
fn parse_content_distribution(input: &mut Parser) -> Result<AlignFlags, ()> {
let ident = input.expect_ident()?;
match_ignore_ascii_case! { &ident,
"stretch" => Ok(ALIGN_STRETCH),
"space-between" => Ok(ALIGN_SPACE_BETWEEN),
"space-around" => Ok(ALIGN_SPACE_AROUND),
"space-evenly" => Ok(ALIGN_SPACE_EVENLY),
_ => Err(())
"stretch" => Ok(ALIGN_STRETCH),
"space-between" => Ok(ALIGN_SPACE_BETWEEN),
"space-around" => Ok(ALIGN_SPACE_AROUND),
"space-evenly" => Ok(ALIGN_SPACE_EVENLY),
_ => Err(())
}
}
// [ <overflow-position>? && <content-position> ]
fn parse_overflow_content_position(input: &mut Parser) -> Result<AlignFlags, ()> {
// <content-position> followed by optional <overflow-position>
if let Ok(mut content) = input.try(|input| parse_content_position(input)) {
if let Ok(overflow) = input.try(|input| parse_overflow_position(input)) {
if let Ok(mut content) = input.try(parse_content_position) {
if let Ok(overflow) = input.try(parse_overflow_position) {
content |= overflow;
}
return Ok(content)
}
// <overflow-position> followed by required <content-position>
if let Ok(overflow) = input.try(|input| parse_overflow_position(input)) {
if let Ok(content) = input.try(|input| parse_content_position(input)) {
if let Ok(overflow) = parse_overflow_position(input) {
if let Ok(content) = parse_content_position(input) {
return Ok(overflow | content)
}
}
@ -465,15 +455,15 @@ fn parse_overflow_position(input: &mut Parser) -> Result<AlignFlags, ()> {
// [ <overflow-position>? && <self-position> ]
fn parse_overflow_self_position(input: &mut Parser) -> Result<AlignFlags, ()> {
// <self-position> followed by optional <overflow-position>
if let Ok(mut self_position) = input.try(|input| parse_self_position(input)) {
if let Ok(overflow) = input.try(|input| parse_overflow_position(input)) {
if let Ok(mut self_position) = input.try(parse_self_position) {
if let Ok(overflow) = input.try(parse_overflow_position) {
self_position |= overflow;
}
return Ok(self_position)
}
// <overflow-position> followed by required <self-position>
if let Ok(overflow) = input.try(|input| parse_overflow_position(input)) {
if let Ok(self_position) = input.try(|input| parse_self_position(input)) {
if let Ok(overflow) = parse_overflow_position(input) {
if let Ok(self_position) = parse_self_position(input) {
return Ok(overflow | self_position)
}
}