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PhutilRemarkupLiteralBlockRule.php
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PhutilRemarkupLiteralBlockRule.php
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<?php
final
class
PhutilRemarkupLiteralBlockRule
extends
PhutilRemarkupBlockRule
{
public
function
getPriority
(
)
{
return
450
;
}
public
function
getMatchingLineCount
(
array
$lines
,
$cursor
)
{
// NOTE: We're consuming all contiguous blocks of %%% literals, so this:
//
// %%%a%%%
// %%%b%%%
//
// ...is equivalent to:
//
// %%%a
// b%%%
//
// If they are separated by a blank newline, they are parsed as two
// different blocks. This more clearly represents the original text in the
// output text and assists automated escaping of blocks coming into the
// system.
$start_pattern
=
'(^\s*%%%)'
;
$end_pattern
=
'(%%%\s*$)'
;
$trivial_pattern
=
'(^\s*%%%\s*$)'
;
if
(
!
preg_match
(
$start_pattern
,
$lines
[
$cursor
]
)
)
{
return
0
;
}
$start_cursor
=
$cursor
;
$found_empty
=
false
;
$block_start
=
null
;
while
(
true
)
{
if
(
!
isset
(
$lines
[
$cursor
]
)
)
{
break
;
}
$line
=
$lines
[
$cursor
]
;
if
(
$block_start
===
null
)
{
$is_start
=
preg_match
(
$start_pattern
,
$line
)
;
// If we've matched a block and then consumed one or more empty lines
// after it, stop merging more blocks into the match.
if
(
$found_empty
)
{
break
;
}
if
(
$is_start
)
{
$block_start
=
$cursor
;
}
}
if
(
$block_start
!==
null
)
{
$is_end
=
preg_match
(
$end_pattern
,
$line
)
;
// If a line contains only "%%%", it will match both the start and
// end patterns, but it only counts as a block start.
if
(
$is_end
&&
(
$cursor
===
$block_start
)
)
{
$is_trivial
=
preg_match
(
$trivial_pattern
,
$line
)
;
if
(
$is_trivial
)
{
$is_end
=
false
;
}
}
if
(
$is_end
)
{
$block_start
=
null
;
$cursor
++
;
continue
;
}
}
if
(
$block_start
===
null
)
{
if
(
strlen
(
trim
(
$line
)
)
)
{
break
;
}
$found_empty
=
true
;
}
$cursor
++
;
}
return
(
$cursor
-
$start_cursor
)
;
}
public
function
markupText
(
$text
,
$children
)
{
$text
=
rtrim
(
$text
)
;
$text
=
phutil_split_lines
(
$text
,
$retain_endings
=
true
)
;
foreach
(
$text
as
$key
=>
$line
)
{
$line
=
preg_replace
(
'/^\s*%%%/'
,
''
,
$line
)
;
$line
=
preg_replace
(
'/%%%(\s*)\z/'
,
'\1'
,
$line
)
;
$text
[
$key
]
=
$line
;
}
if
(
$this
->
getEngine
(
)
->
isTextMode
(
)
)
{
return
implode
(
''
,
$text
)
;
}
return
phutil_tag
(
'p'
,
array
(
'class'
=>
'remarkup-literal'
,
)
,
phutil_implode_html
(
phutil_tag
(
'br'
,
array
(
)
)
,
$text
)
)
;
}
}
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