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Use a namedtuple to describe rules

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Suggested by rdswift
This commit is contained in:
Laurent Monin
2024-05-24 23:11:31 +02:00
parent 5b565eba7d
commit 383716783e
1 changed files with 15 additions and 11 deletions
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26
picard/ui/widgets/scripttextedit.py
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@@ -23,6 +23,7 @@
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
from collections import namedtuple
import re
import unicodedata
@@ -99,6 +100,9 @@ def find_regex_index(regex, text, start=0):
return -1
HighlightRule = namedtuple('HighlightRule', ('regex', 'textcharformat', 'start_offset', 'end_offset'))
class TaggerScriptSyntaxHighlighter(QtGui.QSyntaxHighlighter):
def __init__(self, document):
@@ -140,30 +144,30 @@ class TaggerScriptSyntaxHighlighter(QtGui.QSyntaxHighlighter):
self.rules = list(self.func_rules())
self.rules.extend([
(self.unknown_func_re, self.unknown_func_fmt, 0, -1),
(self.var_re, self.var_fmt, 0, 0),
(self.unicode_re, self.unicode_fmt, 0, 0),
(self.escape_re, self.escape_fmt, 0, 0),
(self.special_re, self.special_fmt, 0, 0),
HighlightRule(self.unknown_func_re, self.unknown_func_fmt, 0, -1),
HighlightRule(self.var_re, self.var_fmt, 0, 0),
HighlightRule(self.unicode_re, self.unicode_fmt, 0, 0),
HighlightRule(self.escape_re, self.escape_fmt, 0, 0),
HighlightRule(self.special_re, self.special_fmt, 0, 0),
])
def func_rules(self):
for func_name in script_function_names():
if func_name != 'noop':
pattern = re.escape("$" + func_name + "(")
yield (re.compile(pattern), self.func_fmt, 0, -1)
yield HighlightRule(re.compile(pattern), self.func_fmt, 0, -1)
def highlightBlock(self, text):
self.setCurrentBlockState(0)
already_matched = set()
for expr, fmt, a, b in self.rules:
for m in expr.finditer(text):
index = m.start() + a
length = m.end() - m.start() + b
for rule in self.rules:
for m in rule.regex.finditer(text):
index = m.start() + rule.start_offset
length = m.end() - m.start() + rule.end_offset
if (index, length) not in already_matched:
already_matched.add((index, length))
self.setFormat(index, length, fmt)
self.setFormat(index, length, rule.textcharformat)
# Ignore everything if we're already in a noop function
index = find_regex_index(self.noop_re, text) if self.previousBlockState() <= 0 else 0