54 lines
1.8 KiB
Python
Executable File
54 lines
1.8 KiB
Python
Executable File
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from collections import OrderedDict
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import logging
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import re
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patterns = OrderedDict()
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patterns['\$'] = ''
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patterns['¹'] = r'\\S1\\N'
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patterns['²'] = r'\\S2\\N'
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patterns['³'] = r'\\S3\\N'
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patterns['⁴'] = r'\\S4\\N'
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patterns['⁵'] = r'\\S5\\N'
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patterns['⁶'] = r'\\S6\\N'
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patterns['⁷'] = r'\\S7\\N'
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patterns['⁸'] = r'\\S8\\N'
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patterns['⁹'] = r'\\S9\\N'
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patterns['⁻'] = r'\\S-\\N'
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patterns[r'\\star'] = '*'
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patterns[r'\\,'] = r'\\-\\- \\+\\+'
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patterns[r'\\[;:.]'] = ''
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patterns[r'\\math(?:tt|sf|it|rm)({[^}]+})'] = r'\1'
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patterns[r'\^({[^}]+}|.)'] = r'\\S\1\\N'
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patterns[r'\_({[^}]+}|.)'] = r'\\s\1\\N'
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# Remove any left over latex groups as the last step
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patterns[r'[{}]'] = ''
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# now any patterns that do need braces...
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patterns[r'\\tilde '] = r'\\v{{0.1}}~\\v{{-0.1}}\\M{{1}}'
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# Greek letters in xmgrace are written by switching to symbol-font:
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# "\x a\f{}" will print an alpha and switch back to normal font
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greek = {
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'alpha': 'a', 'beta': 'b', 'gamma': 'g', 'delta': 'd', 'epsilon': 'e', 'zeta': 'z',
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'eta': 'h', 'theta': 'q', 'iota': 'i', 'kappa': 'k', 'lambda': 'l', 'mu': 'm',
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'nu': 'n', 'xi': 'x', 'omicron': 'o', 'pi': 'p', 'rho': 'r', 'sigma': 's',
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'tau': 't', 'upsilon': 'u', 'phi': 'f', 'chi': 'c', 'psi': 'y', 'omega': 'w',
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'varphi': 'j', 'varepsilon': 'e', 'vartheta': 'J', 'varrho': 'r',
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'Phi': 'F',
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'langle': r'\#{{e1}}', 'rangle': r'\#{{f1}}', 'infty': r'\\c%\\C', 'cdot': r'\#{{d7}}',
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'sqrt': r'\#{{d6}}', 'propto': r'\#{{b5}}', 'approx': r'\#{{bb}}'
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}
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for latex, xmg in greek.items():
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patt = r'\\{}'.format(latex)
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repl = r'\\x {}\\f{{{{}}}}'.format(xmg)
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patterns[patt] = repl
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def latex_to_xmgrace(string):
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logging.debug('Convert to xmgrace: {}'.format(string))
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for patt, repl in patterns.items():
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string = re.sub(patt, repl, string)
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logging.debug('To -> {}'.format(string))
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return string
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