timw4mail/php-kilo
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Split syntax highlighting into methods
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This commit is contained in:
Timothy Warren 2021-04-09 19:41:15 -04:00
parent ead70c33ac
commit dcaf922796
1 changed files with 161 additions and 66 deletions
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221
src/Row.php
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@ -155,26 +155,168 @@ class Row {
$this->highlightGeneral();
}
protected function highlightComment(int $i, string $char): bool
protected function highlightNumber(int &$i, Syntax $opts): bool
{
$scs = $this->parent->fileType->syntax->singleLineCommentStart;
$scsLen = strlen($scs);
$char = $this->render[$i];
if ($opts->numbers() && is_digit($char))
{
if ($i > 0)
{
$prevChar = $this->render[$i - 1];
if ( ! is_separator($prevChar))
{
return false;
}
}
if ($scsLen > 0 && substr($this->render, $i, $scsLen) === $scs)
while (true)
{
array_replace_range($this->hl, $i, $this->rsize - $i, Highlight::COMMENT);
$this->hl[$i] = Highlight::NUMBER;
$i++;
if ($i < strlen($this->render))
{
$nextChar = $this->render[$i];
if ($nextChar !== '.' && ! is_digit($nextChar))
{
break;
}
}
else
{
break;
}
}
return true;
}
return false;
}
protected function highlightString(int &$i): bool
protected function highlightWord(int &$i, array $keywords, int $syntaxType): bool
{
if ($i > 0)
{
$prevChar = $this->render[$i - 1];
if ( ! is_separator($prevChar))
{
return false;
}
}
foreach ($keywords as $k)
{
$klen = strlen($k);
$nextCharOffset = $i + $klen;
$isEndOfLine = $nextCharOffset >= $this->rsize;
$nextChar = ($isEndOfLine) ? RawKeyCode::NULL : $this->render[$nextCharOffset];
if (substr($this->render, $i, $klen) === $k && is_separator($nextChar))
{
array_replace_range($this->hl, $i, $klen, $syntaxType);
$i += $klen - 1;
return true;
}
}
return false;
}
protected function highlightPrimaryKeywords(int &$i, Syntax $opts): bool
{
return $this->highlightWord($i, $opts->keywords1, Highlight::KEYWORD1);
}
protected function highlightSecondaryKeywords(int &$i, Syntax $opts): bool
{
return $this->highlightWord($i, $opts->keywords2, Highlight::KEYWORD2);
}
protected function highlightChar(int &$i, Syntax $opts): bool
{
$char = $this->render[$i];
$enabled = $this->parent->fileType->syntax->flags & Syntax::HIGHLIGHT_STRINGS;
if ($enabled && $char === '"' || $char === '\'')
if ($opts->characters() && $char === "'")
{
$nextChar = $this->render[$i + 1];
$closingIndex = ($nextChar === '\\') ? $i + 3 : $i + 2;
$closingChar = $this->render[$closingIndex];
if ($closingChar === "'")
{
array_replace_range($this->hl, $i, $closingIndex, Highlight::CHARACTER);
$i = $closingIndex;
return true;
}
}
return false;
}
protected function highlightComment(int &$i, Syntax $opts): bool
{
if ( ! $opts->comments())
{
return false;
}
$scs = $opts->singleLineCommentStart;
$scsLen = strlen($scs);
if ($scsLen > 0 && substr($this->render, $i, $scsLen) === $scs)
{
array_replace_range($this->hl, $i, $this->rsize - $i, Highlight::COMMENT);
$i = $this->rsize;
return true;
}
return false;
}
protected function highlightMultilineComments(int &$i, Syntax $opts): bool
{
if ( ! $opts->comments())
{
return false;
}
$mcs = $opts->multiLineCommentStart;
$mce = $opts->multiLineCommentEnd;
$mcsLen = strlen($mcs);
$mceLen = strlen($mce);
if ($i + $mcsLen < $this->rsize && \str_contains($this->render, $mcs))
{
$endix = strpos($this->render, $mcs);
$closingIndex = ($endix !== false)
? $i + $endix + $mcsLen + $mceLen
: $this->rsize;
array_replace_range($this->hl, $i, $closingIndex, Highlight::ML_COMMENT);
$i += $closingIndex;
return true;
}
return false;
}
protected function highlightString(int &$i, Syntax $opts): bool
{
$char = $this->render[$i];
// If there's a separate character type, highlight that separately
if ($opts->hasChar() && $char === "'")
{
return false;
}
if ($opts->strings() && $char === '"' || $char === '\'')
{
$quote = $char;
$this->hl[$i] = Highlight::STRING;
@ -221,18 +363,12 @@ class Row {
$syntax = $this->parent->fileType->syntax;
$keywords1 = $syntax->keywords1;
$keywords2 = $syntax->keywords2;
$scs = $syntax->singleLineCommentStart;
$mcs = $syntax->multiLineCommentStart;
$mce = $syntax->multiLineCommentEnd;
$scsLen = strlen($scs);
$mcsLen = strlen($mcs);
$mceLen = strlen($mce);
$prevSep = TRUE;
$inString = '';
$inComment = ($this->idx > 0 && $this->parent->rows[$this->idx - 1]->hlOpenComment);
@ -243,14 +379,6 @@ class Row {
$char = $this->render[$i];
$prevHl = ($i > 0) ? $this->hl[$i - 1] : Highlight::NORMAL;
// Single-line comments
if ($scsLen > 0 && $inString === '' && $inComment === FALSE
&& substr($this->render, $i, $scsLen) === $scs)
{
array_replace_range($this->hl, $i, $this->rsize - $i, Highlight::COMMENT);
break;
}
// Multi-line comments
if ($mcsLen > 0 && $mceLen > 0 && $inString === '')
{
@ -262,7 +390,6 @@ class Row {
array_replace_range($this->hl, $i, $mceLen, Highlight::ML_COMMENT);
$i += $mceLen;
$inComment = FALSE;
$prevSep = TRUE;
continue;
}
@ -279,50 +406,18 @@ class Row {
}
}
// String/Char literals
$this->highlightString($i);
// Numbers, including decimal points
if ($syntax->flags & Syntax::HIGHLIGHT_NUMBERS)
{
if (
($char === '.' && $prevHl === Highlight::NUMBER) ||
(($prevSep || $prevHl === Highlight::NUMBER) && is_digit($char))
)
{
$this->hl[$i] = Highlight::NUMBER;
$i++;
$prevSep = FALSE;
$this->highlightChar($i, $syntax)
|| $this->highlightComment($i, $syntax)
|| $this->highlightMultilineComments($i, $syntax)
|| $this->highlightPrimaryKeywords($i, $syntax)
|| $this->highlightSecondaryKeywords($i, $syntax)
|| $this->highlightString($i, $syntax)
|| $this->highlightNumber($i, $syntax)
) {
continue;
}
}
// Keywords
if ($prevSep)
{
$findKeywords = function (array $keywords, int $syntaxType) use (&$i): void
{
foreach ($keywords as $k)
{
$klen = strlen($k);
$nextCharOffset = $i + $klen;
$isEndOfLine = $nextCharOffset >= $this->rsize;
$nextChar = ($isEndOfLine) ? RawKeyCode::NULL : $this->render[$nextCharOffset];
if (substr($this->render, $i, $klen) === $k && is_separator($nextChar))
{
array_replace_range($this->hl, $i, $klen, $syntaxType);
$i += $klen - 1;
break;
}
}
};
$findKeywords($keywords1, Highlight::KEYWORD1);
$findKeywords($keywords2, Highlight::KEYWORD2);
}
$prevSep = is_separator($char);
$i++;
}