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56 lines
2.4 KiB
56 lines
2.4 KiB
#!/usr/bin/env python2
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#
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# Fix a few errors from Emscripten output (stopgap until emscripten mainline
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# is updated).
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#
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# NOTE: For Duktape 1.5.0 no fixups are needed anymore, at least at the time of
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# writing (the situation may of course change at a later time).
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import os
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import sys
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fix_count = 0
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replacements = {
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# RegExp fixes for non-compliant regexps (typically literal brace
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# without a backslash escape). These fixes are no longer needed
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# with Duktape 1.5.0 which adds support for parsing non-standard
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# regexp curly braces.
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#r"""if (/<?{ ?[^}]* ?}>?/.test(type)) return true""":
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# r"""if (/<?\{ ?[^}]* ?\}>?/.test(type)) return true""",
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#r"""var sourceRegex = /^function\s\(([^)]*)\)\s*{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?}$/;""":
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# r"""var sourceRegex = /^function\s\(([^)]*)\)\s*\{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?\}$/;""",
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#r"""var sourceRegex = /^function\s*\(([^)]*)\)\s*{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?}$/;""":
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# r"""var sourceRegex = /^function\s*\(([^)]*)\)\s*\{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?\}$/;""",
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#r"""/^function\s*\(([^)]*)\)\s*{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?}$/""":
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# r"""/^function\s*\(([^)]*)\)\s*\{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?\}$/""",
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# GH-11: Attempt to parse a function's toString() output with a RegExp.
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# The RegExp assumes more of toString() output format than what is
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# guaranteed by the specification, and won't parse Duktape 1.4.0 (and
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# before) function toString() output ("function empty() {/* source code*/)}").
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# No longer needed in Duktape 1.5.0 which changed the .toString() format.
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#r"""var parsed = jsfunc.toString().match(sourceRegex).slice(1);""":
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# r"""var parsed = (jsfunc.toString().match(sourceRegex) || []).slice(1);""",
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#r"""jsfunc.toString().match(sourceRegex).slice(1);""":
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# r"""(jsfunc.toString().match(sourceRegex) || []).slice(1);""",
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}
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repl_keys = replacements.keys()
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repl_keys.sort()
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for line in sys.stdin:
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if len(line) > 1 and line[-1] == '\n':
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line = line[:-1]
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for k in repl_keys:
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line_fix = line.replace(k, replacements[k])
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if line_fix != line:
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fix_count += 1
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line = line_fix
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print(line)
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if fix_count > 0:
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sys.stderr.write('Emscripten fixes needed (fix_emscripten.py): fix_count=%d\n' % fix_count)
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sys.stderr.flush()
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