Mercurial > octave-nkf

annotate doc/interpreter/munge-texi.pl @ 20595:c1a6c31ac29a

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eliminate more simple uses of error_state * ov-classdef.cc: Eliminate simple uses of error_state.
author John W. Eaton <jwe@octave.org>
date Tue, 06 Oct 2015 00:20:02 -0400
parents 0e1f5a750d00
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/perl -w
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2
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3 # Validate program call
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4 die "usage: munge-texi TOP-SRCDIR DOCSTRING-FILE < file" if (@ARGV < 2);
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5
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6 $top_srcdir = shift (@ARGV);
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7
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8 # Constant patterns
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9 $doc_delim = qr/^\x{1d}/;
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10 $tex_delim = qr/\Q-*- texinfo -*-\E/;
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11 $comment_line = qr/^\s*(?:$|#)/;
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12 # Pre-declare hash size for efficiency
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13 keys(%help_text) = 1800;
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14
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15 ################################################################################
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16 # Load DOCSTRINGS into memory while expanding @seealso references
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17 foreach $DOCSTRING_file (@ARGV)
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18 {
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19 open (DOCFH, $DOCSTRING_file) or die "Unable to open $DOCSTRING_file\n";
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20
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21 # Skip comments
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22 while (defined ($_ = <DOCFH>) and /$comment_line/o) {;}
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23
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24 # Validate DOCSTRING file format
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25 die "invalid doc file format\n" if (! /$doc_delim/o);
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26
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27 do
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28 {
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29 s/\s*$//; # strip EOL character(s)
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30 $symbol = substr ($_,1);
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31 $docstring = extract_docstring ();
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32 if ($help_text{$symbol})
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33 {
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34 warn "ignoring duplicate entry for $symbol\n";
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35 }
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36 else
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37 {
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38 $help_text{$symbol} = $docstring;
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39 }
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40
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41 } while (! eof);
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42
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43 }
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44
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45 ################################################################################
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46 # Process .txi to .texi by expanding @DOCSTRING, @EXAMPLEFILE macros
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47
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48 # Add warning header
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49 print '@c DO NOT EDIT! Generated automatically by munge-texi.pl.',"\n\n";
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50
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51 TXI_LINE: while (<STDIN>)
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52 {
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53 if (/^\s*\@DOCSTRING\((\S+)\)/)
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54 {
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55 $func = $1;
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56 $docstring = $help_text{$func};
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57 if (! $docstring)
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58 {
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59 warn "no docstring entry for $func\n";
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60 next TXI_LINE;
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61 }
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62
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63 $func =~ s/^@/@@/; # Texinfo uses @@ to produce '@'
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64 $docstring =~ s/^$tex_delim$/\@anchor{XREF$func}/m;
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65 print $docstring,"\n";
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66
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67 next TXI_LINE;
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68 }
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69 if (/^\s*\@EXAMPLEFILE\((\S+)\)/)
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70 {
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71 $fname = "$top_srcdir/examples/code/$1";
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72 print '@verbatim',"\n";
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73 open (EXAMPFH, $fname) or die "unable to open example file $fname\n";
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74 while (<EXAMPFH>)
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75 {
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76 print $_;
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77 print "\n" if (eof and substr ($_, -1) ne "\n");
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78 }
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79 close (EXAMPFH);
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80 print '@end verbatim',"\n\n";
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81
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82 next TXI_LINE;
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83 }
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84
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85 # pass ordinary lines straight through to output
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86 print $_;
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87 }
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88
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89
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90 ################################################################################
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91 # Subroutines
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92 ################################################################################
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93 sub extract_docstring
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94 {
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95 my ($docstring, $arg_list, $func_list, $repl, $rest_of_line);
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96
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97 while (defined ($_ = <DOCFH>) and ! /$doc_delim/o)
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98 {
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99 # expand any @seealso references
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100 if (m'^@seealso{')
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101 {
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102 # Join multiple lines until full macro body found
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103 while (! /}/m) { $_ .= <DOCFH>; }
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104
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105 ($arg_list, $rest_of_line) = m'^@seealso{(.*)}(.*)?'s;
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106
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107 $func_list = $arg_list;
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108 $func_list =~ s/\s+//gs;
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109 $repl = "";
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110 foreach $func (split (/,/, $func_list))
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111 {
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112 $func =~ s/^@/@@/; # Texinfo uses @@ to produce '@'
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113 $repl .= "\@ref{XREF$func,,$func}, ";
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114 }
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115 substr($repl,-2) = ""; # Remove last ', '
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116 $_ = "\@seealso{$repl}$rest_of_line";
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117 }
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118
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119 $docstring .= $_;
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120 }
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121
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122 return $docstring;
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123 }
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124