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snipmate.vim/convertSnip.py
2009-04-14 18:57:49 -04:00

113 lines
3.4 KiB
Python
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#!/usr/bin/python
"""
File: convertSnips.py
Author: Michael Sanders
Description: Converts deprecated command-based snippets to file-based snippets.
NOTE: This is only meant to help, it is not perfect! Check the file afterwards
to make sure it's correct.
"""
import sys, re
def usage():
"""Print usage message and exit."""
print """\
converSnips.py -
This is meant to help migrate old command-based snippets to file-based snippets.
It can only convert from the old, deprecated snipMate format, not from
snippetsEmu or any other snippet plugin.
Usage: convertSnips.py -h or --help Print this help and exit
or: convertSnips.py [inputfile] Print .snippets file
or: convertSnips.py [inputfile] [outputfile] Output to file"""
def find_snippet(line):
"""
Try to find a snippet in the given line. If it is found, return the
converted snippet; otherwise, return -1.
"""
snippet = re.search("exe ['\"](GlobalSnip|Snipp)(!)? (\S+) (.*)['\"]", line)
if not snippet:
return -1
trigger = snippet.group(3)
text = "\t" + snippet.group(4)
if snippet.group(2): # Process multi-snippet
end_snip = re.search(r'\s*\\"(.*?)\\"\s*(.*)', text)
if not end_snip:
end_snip = re.search('\s*"(.*?)"\s*(.*)', text)
if not end_snip:
return -1
trigger += ' ' + end_snip.group(1) # Add name to snippet declaration
text = "\t" + end_snip.group(2)
return trigger + "\n" + text
def process_line(line, new_lines):
"""
Search the line for a snippet or comment, and append it to new_lines[]
if it is found.
"""
snippet = find_snippet(line)
if snippet == -1:
comment = re.match('^"(.*)', line)
if comment:
new_lines.append('#' + comment.group(1))
else:
new_lines.append('snippet ' + snippet)
return snippet, new_lines
def output_lines(lines, outputfile = None):
"""Prints or outputs to file the converted snippets."""
file_lines = ''
for snippet in lines:
for line in snippet.split("\\n"):
line = re.sub(r'\\t', '\t', line)
line = re.sub(r'\\\\', r'\\', line)
if not re.match('^(\#|snippet|$)', line):
line = "\t" + line
file_lines += line + "\n"
if outputfile:
try:
output = open(outputfile, 'w')
except IOError, error:
raise SystemExit('convertSnips.py: %s' % error)
output.write(file_lines)
else:
print file_lines,
def main(argv = None):
if argv is None:
argv = sys.argv[1:]
if not argv or '-h' in argv or '--help' in argv:
usage()
return 1
try:
inputfile = open(argv[0], 'r')
except IOError, error:
raise SystemExit('convertSnips.py: %s' % error)
snippet = -1
new_lines = []
for line in inputfile.readlines():
if snippet == -1:
snippet, new_lines = process_line(line, new_lines)
else:
concat = re.search(r"^\s+(\\\s*)?(\.\s*)?['\"](.*)['\"]", line)
if concat:
new_lines[-1] += "\n" + concat.group(3) # Add concatenated lines
else:
snippet, new_lines = process_line(line, new_lines)
if len(argv) == 1:
output_lines(new_lines)
else:
output_lines(new_lines, argv[1])
if __name__ == '__main__':
sys.exit(main())