Mercurial > hgrepos > Python > libs > pygments-lexer-pseudocode2

annotate pygments_lexer_pseudocode2/pseudocode.py @ 35:d9a3551a1038

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Basics of translating some keywords
author Franz Glasner <fzglas.hg@dom66.de>
date Wed, 22 Apr 2026 16:23:09 +0200
parents 1f741934205e
children 69522d4cafac
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1 # -*- coding: utf-8 -*-
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2 # :-
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3 # SPDX-FileCopyrightText: © 2026 Franz Glasner
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4 # SPDX-License-Identifier: MIT
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5 # :-
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6 r"""A pseudocode lexer along the lines of CTAN's algpseudocode or
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7 algpseudocodex.
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8
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9 """
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10
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11 __all__ = ["PseudocodeLexer", "PseudocodeLexer_DE"]
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12
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13
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14 import re
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15
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16 from pygments.lexer import include
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17 from pygments.token import (Keyword, Text, Whitespace)
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18
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19 #
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20 # Relative imports do not work with pygments.lexers.load_lexer_from_file()
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21 # in all of our supported Python releases.
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22 #
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23 from pygments_lexer_pseudocode2.bases import LexBase
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26 class PseudocodeLexer(LexBase):
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28 """A pseudocode lexer along the lines of CTAN's algpseudocode or
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29 algpseudocodex.
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30
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31 Some ideas (e.g. strings) are borrowed from Pygment's Python lexer.
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32
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33 """
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34
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35 name = "Pseudocode"
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36 aliases = ["pseudocode", "pseudo", "algorithm", "algo"]
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37 filenames = ["*.algo", "*.pseudocode"]
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38 mimetypes = []
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39 flags = re.MULTILINE
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40
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41 LANG = "en"
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42 TRANSLATIONS = {
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43 "PROG": "PROGRAM",
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44 "PROGRAM": "PROGRAM",
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45 "ALGO": "ALGORITHM",
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46 "ALGORITHM": "ALGORITHM",
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47 "PROC": "PROCEDURE",
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48 "PROCEDURE": "PROCEDURE",
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49 "FUNC": "FUNCTION",
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50 "FUNCTION": "FUNCTION",
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51 "FN": "FUNCTION",
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52 "CLASS": "CLASS",
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53 }
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54
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55 def op_translate(toktype):
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56
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57 def _op_translate(lexer, match):
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58 kw = match.group(1).upper()
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59 kwtrans = lexer.TRANSLATIONS.get(kw, kw)
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60 yield match.start(), toktype, kwtrans
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61
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62 return _op_translate
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63
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64 tokens = {
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65 "root": [
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66 (r"\n", Whitespace),
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67 (r"\\\n", Text),
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68 (r"(?i)\\("
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69 r"(?:prog(?:ram)?)"
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70 r"|(?:algo(?:rithm)?)"
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71 r"|(?:proc(?:edure)?)"
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72 r"|(?:func(?:tion)?|(?:fn))"
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73 r"|(?:class)"
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74 r")\b",
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75 op_translate(Keyword)),
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76 include("expr"),
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77 ],
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78 "expr": [
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79 include("py-strings"),
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80 include("py-numbers"),
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81 ]
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82 }
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83
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84
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85 class PseudocodeLexer_DE(PseudocodeLexer):
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86
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87 name = "PseudocodeDE"
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88 aliases = ["pseudocode-de", "pseudo-de", "algorithm-de", "algo-de"]
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89 filenames = ["*.algo-de", "*.pseudocode-de"]
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90
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91 LANG = "de"
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92 TRANSLATIONS = {
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93 "PROG": "PROGRAMM",
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94 "PROGRAM": "PROGRAMM",
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95 "ALGO": "ALGORITHMUS",
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96 "ALGORITHM": "ALGORITHM",
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97 "PROC": "PROZEDUR",
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98 "PROCEDURE": "PROZEDUR",
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99 "FUNC": "FUNKTION",
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100 "FUNCTION": "FUNKTION",
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101 "FN": "FUNKTION",
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102 "CLASS": "KLASSE",
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103 }
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104
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105
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106 class PseudocodeLexer_FR(PseudocodeLexer):
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107
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108 name = "PseudocodeFR"
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109 aliases = ["pseudocode-fr", "pseudo-fr", "algorithm-fr", "algo-fr"]
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110 filenames = ["*.algo-fr", "*.pseudocode-fr"]
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111
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112 LANG = "de"
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113 TRANSLATIONS = {
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114 "PROG": "PROGRAMME",
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115 "PROGRAM": "PROGRAMME",
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116 "ALGO": "ALGORITHME",
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117 "ALGORITHM": "ALGORITHME",
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118 "PROC": "PROCÉDURE",
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119 "PROCEDURE": "PROCÉDURE",
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120 "FUNC": "FONCTION",
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121 "FUNCTION": "FOUNCTION",
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122 "FN": "FONCTION",
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123 "CLASS": "CLASSE",
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124 }