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# LexGen.py - implemented 2002 by Neil Hodgson neilh@scintilla.org
# Released to the public domain.
# Regenerate the Scintilla and SciTE source files that list
# all the lexers. Should be run whenever a new lexer is added or removed.
# Requires Python 2.1 or later
# The files are copied to a temporary file apart from sections between
# a ++Autogenerated comment and a --Autogenerated comment which is
# generated by the CopyWithInsertion function. After the temporary
# file is created, it is copied back to the original file name.
# Does not regenerate the Visual C++ project files.
import string
import sys
import os
import glob
# Automatically generated sections contain start and end comments,
# a definition line and the results.
# The results are replaced by regenerating based on the definition line.
# The definition line is a comment prefix followed by "**".
# Backslash is used as an escape within the definition line.
# The part between \( and \) is repeated for each item in the list.
# \* is replaced by each list item. \t, and \n are tab and newline.
def CopyWithInsertion(input, output, commentPrefix, list):
copying = 1
for line in input.readlines():
if copying:
output.write(line)
if line.startswith(commentPrefix + "++Autogenerated"):
copying = 0
definition = ""
elif not copying and line.startswith(commentPrefix + "**"):
output.write(line)
definition = line[len(commentPrefix + "**"):-1]
# Hide double slashes as a control character
definition = definition.replace("\\\\", "\001")
# Do some normal C style transforms
definition = definition.replace("\\n", "\n")
definition = definition.replace("\\t", "\t")
# Get the doubled backslashes back as single backslashes
definition = definition.replace("\001", "\\")
startRepeat = definition.find("\\(")
endRepeat = definition.find("\\)")
intro = definition[:startRepeat]
if intro.endswith("\n"):
pos = 0
else:
pos = len(intro)
output.write(intro)
middle = definition[startRepeat+2:endRepeat]
for i in list:
item = middle.replace("\\*", i)
if pos and (pos + len(item) >= 80):
output.write("\\\n")
pos = 0
output.write(item)
pos += len(item)
if item.endswith("\n"):
pos = 0
outro = definition[endRepeat+2:]
output.write(outro)
output.write("\n")
elif line.startswith(commentPrefix + "--Autogenerated"):
copying = 1
output.write(line)
def Regenerate(filename, commentPrefix, list, outmode="wt"):
try:
infile = open(filename, "rt")
except IOError:
print "Can not open", filename
return
tempname = filename + ".tmp"
out = open(tempname, outmode)
CopyWithInsertion(infile, out, commentPrefix, list)
out.close()
infile.close()
os.unlink(filename)
os.rename(tempname, filename)
def FindModules(lexFile):
modules = []
f = open(lexFile)
for l in f.readlines():
if l.startswith("LexerModule"):
l = l.replace("(", " ")
modules.append(l.split()[1])
return modules
root="../../"
lexFilePaths = glob.glob(root + "scintilla/src/Lex*.cxx")
lexFiles = [os.path.basename(f)[:-4] for f in lexFilePaths]
print lexFiles
lexerModules = []
for lexFile in lexFilePaths:
lexerModules.extend(FindModules(lexFile))
print lexerModules
Regenerate(root + "scintilla/src/KeyWords.cxx", "//", lexerModules)
Regenerate(root + "scintilla/win32/makefile", "#", lexFiles)
Regenerate(root + "scintilla/win32/scintilla.mak", "#", lexFiles)
Regenerate(root + "scintilla/gtk/makefile", "#", lexFiles, "wb")
Regenerate(root + "scintilla/gtk/scintilla.mak", "#", lexFiles)
Regenerate(root + "scite/win32/makefile", "#", lexFiles)
Regenerate(root + "scite/win32/scite.mak", "#", lexFiles)
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