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1 | # Make a TAGS file for emacs ``M-x find-tag'' from all <c,h,y,xs> source files. |
2 | # (``make realclean'' first to avoid generated files, or ``make'' first |
3 | # to get tags from all files.) |
4 | # |
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5 | # |
6 | # usage: sh emacs/ptags <options> |
7 | # |
8 | # options: |
9 | # |
10 | # fullpath - use full paths in TAGS (default: relative to the root) |
11 | # |
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12 | # (Some tags should probably live in their own subdirs, like those in x2p/, |
13 | # but I have never been interested in x2p anyway.) |
14 | # |
15 | # Hallvard B Furuseth <h.b.furuseth@usit.uio.no>, Aug -96. |
16 | # |
17 | # Ilya Zakharevich, Oct 97: minor comments, add CPerl scan; |
18 | # Use Hallvard's scan for XS files - since he processes the "C" part too - |
19 | # but with a lot of improvements: now it is no worse than CPerl's one. |
20 | |
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21 | # Avoid builtin on OS/2: |
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22 | if test ! -z "$OS2_SHELL"; then alias find=gnufind; fi |
23 | |
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24 | case "$1" in |
25 | fullpath) |
26 | cwd=`pwd` |
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27 | cperl_add_tags='cperl-add-tags-recurse-noxs-fullpath' |
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28 | echo "Building TAGS with full paths" |
29 | ;; |
30 | *) |
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31 | cperl_add_tags='cperl-add-tags-recurse-noxs' |
32 | cwd='.' |
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33 | echo "Building TAGS with relative paths" |
34 | esac |
35 | |
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36 | emacs=`(which emacs || which xemacs || echo emacs) 2>/dev/null` |
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37 | [ -x "$emacs" ] || { echo "can't find emacs or xemacs in PATH"; exit 1; } |
38 | |
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39 | # Insure proper order (.h after .c, .xs before .c in subdirs): |
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40 | # Move autogenerated less-informative files to the end: |
41 | # Hard to do embed.h and embedvar.h in one sweep: |
42 | |
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43 | topfiles="`echo ' ' *.y *.c *.h ' ' | sed 's/ / /g' | sed 's/ embedvar\.h\|embed\.h\|perlapi\.h\|os2ish\.h\|\(globals\|perlapi\| os2\)\.c / /g'| sed "s#\(^\| \)\([^ ]\)#\1$cwd/\2#g"`" |
44 | subdirs="`find $cwd/* -maxdepth 0 -type d`" |
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45 | subdirfiles="`find $subdirs -name '*.[cy]' -print | sort`" |
46 | subdirfiles1="`find $subdirs -name '*.[hH]' -print | sort`" |
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47 | xsfiles="`find $cwd/ -name '*.xs' -print | sort`" |
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48 | |
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49 | # etags -d : process defines too (default now) |
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50 | |
51 | # These are example lines for global variables and PP-code: |
52 | ## IEXT SV * Iparsehook; |
53 | ## IEXT char * Isplitstr IINIT(" "); |
54 | ## dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n"; |
55 | ## PP(pp_const) |
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56 | ## PERLVARI(Grsfp, PerlIO *, Nullfp) |
57 | ## PERLVAR(cvcache, HV *) |
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58 | |
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59 | # Putting PL_\1 in the substitution line makes etags dump core |
60 | # Thus we do it later (but 20.2.92 does it OK). |
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61 | set x -d -l c \ |
62 | -r '/[dI]?EXT\(CONST\)?[ \t*]+\([a-zA-Z_0-9]+[ \t*]+\)*\([a-zA-Z_0-9]+\)[ \t]*\($\|;\|\[\|[ \t]I+NIT[ \t]*(\|\/\*\)/\3/' \ |
63 | -r '/IEXT[ \t][^\/]*[ \t*]I\([a-zA-Z_][a-zA-Z_0-9]*\)[\[; \t]/\1/' \ |
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64 | -r '/PERLVAR[a-zA-Z_0-9]*[ \t]*([ \t]*[GIT]?\([a-zA-Z_][a-zA-Z_0-9]*\)[ \t]*[\[,]/\1/' \ |
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65 | -r '/PP[ \t]*([ \t]*\([^ \t()]*\)[ \t]*)/\1/' |
66 | |
67 | shift |
68 | |
69 | rm -f TAGS.tmp TAGS.tm2 |
70 | |
71 | # Process lines like this: #define MEM_ALIGNBYTES $alignbytes /**/ |
72 | etags -o TAGS.tmp \ |
73 | -l none -r '/#\(\$[a-zA-Z_0-9]+\|define\)[ \t]+\([a-zA-Z_0-9]+\)/\2/' \ |
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74 | $cwd/config_h.SH |
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75 | # Process lines like this: Mcc (Loc.U): |
76 | etags -o TAGS.tmp -a \ |
77 | -l none -r '/^\([a-zA-Z_0-9]+\)[ \t]+(/\$\1/' \ |
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78 | -r '/^\([a-zA-Z_0-9]+\)[ \t]+(/\1/' $cwd/Porting/Glossary |
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79 | |
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80 | etags -o TAGS.tmp -a "$@" $topfiles |
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81 | |
82 | # Now add these PL_: |
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83 | perl -w014pe 'if (s/^( .* PERLVAR A?I? # 1: TAG group |
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84 | \s* \( \s* [GIT] # |
85 | .* # |
86 | \x7F # End of description |
87 | ) |
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88 | ( .* \x01 ) # 2: Exact group |
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89 | /${1}PL_$2/mgx) { # Add PL_ |
90 | $chars = chomp; |
91 | s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e; |
92 | $_ .= ("\f" x $chars); |
93 | }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp |
94 | |
95 | |
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96 | # Now remove these Perl_, add empty- and perl_-flavors: |
97 | perl -w014pe 'if (s/^(Perl_ # 1: First group |
98 | (\w+) \( # 2: Stripped name |
99 | \x7F # End of description |
100 | ) # End of description |
101 | (\d+,\d+\n) # 3: TAGS Trail |
102 | /$1$3$1$2\x01$3$1perl_$2\x01$3/mgx) { # Repeat, add empty and perl_ flavors |
103 | $chars = chomp; |
104 | s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e; |
105 | $_ .= ("\f" x $chars); |
106 | }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp |
107 | |
108 | # Now remove these S_, add empty-flavor: |
109 | perl -w014pe 'if (s/^(S_ # 1: First group |
110 | (\w+) \( # 2: Stripped name |
111 | \x7F # End of description |
112 | ) # End of description |
113 | (\d+,\d+\n) # 3: TAGS Trail |
114 | /$1$3$1$2\x01$3/mgx) { # Repeat, add empty_ flavor |
115 | $chars = chomp; |
116 | s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e; |
117 | $_ .= ("\f" x $chars); |
118 | }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp |
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119 | |
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120 | etags -o TAGS.tmp -a -D -l none -r '/#define.*\t\(Perl_.*\)/\1/' $cwd/embed.h |
121 | etags -o TAGS.tmp -a $cwd/globals.c $cwd/embedvar.h $cwd/perlapi.c $cwd/perlapi.h |
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122 | |
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123 | # The above processes created a lot of descriptions with an |
124 | # an explicitly specified tag. Such descriptions have higher |
125 | # precedence than descriptions without an explicitely specified tag. |
126 | # To restore the justice, make all the descriptions explicit. |
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127 | perl -w014pe 'if (s/^( [^\n\x7F\x01]*\b # 1: TAG group |
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128 | (\w+) # 2: word |
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129 | [^\w\x7F\x01\n]* # Most anything |
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130 | \x7F # End of description |
131 | ) |
132 | (\d+,\d+\n) # 3: TAGS Trail |
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133 | /$1$2\x01$3/mgx) { # Add specific marking |
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134 | $chars = chomp; |
135 | s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e; |
136 | $_ .= ("\f" x $chars); |
137 | }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp |
138 | |
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139 | # Add MODULE lines to TAG files (to be postprocessed later), |
140 | # and BOOT: lines (in DynaLoader processed twice?) |
141 | |
142 | # This skips too many XSUBs: |
143 | |
144 | # etags -o TAGS.tmp -a -d -l c \ |
145 | # -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)\([ \t]*PREFIX[ \t]*=[ \t]*\([^ \t]+\)\)?/\2/' \ |
146 | # -r '/[ \t]*BOOT:/' \ |
147 | # $xsfiles |
148 | |
149 | etags -o TAGS.tmp -a -d -l c \ |
150 | -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)\([ \t]*PREFIX[ \t]*=[ \t]*\([^ \t]+\)\)?/\2/' \ |
151 | -r '/[ \t]*BOOT:/' \ |
152 | -r '/\([_a-zA-Z][a-zA-Z0-9_:]*\)(/' \ |
153 | $xsfiles |
154 | |
155 | # -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)/\2/' \ |
156 | # -r '/MODULE.*PREFIX[ \t]*=[ \t]*\([^ \t]+\)/\1/' \ |
157 | # $xsfiles |
158 | |
159 | etags -o TAGS.tmp -a "$@" $subdirfiles |
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160 | etags -o TAGS.tmp -a "$@" $subdirfiles1 |
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161 | |
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162 | if test ! -f emacs/cperl-mode.elc ; then |
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163 | ( cd emacs; $emacs -batch -q -no-site-file -f batch-byte-compile cperl-mode.el ) |
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164 | fi |
165 | |
166 | # This should work with newer Emaxen |
167 | |
168 | cp TAGS.tmp TAGS |
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169 | if $emacs -batch -q -no-site-file -l emacs/cperl-mode.elc -f $cperl_add_tags ; then |
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170 | mv TAGS TAGS.tmp |
171 | fi |
172 | |
173 | perl -w014pe ' |
174 | $update = s/^PP\(\177\d+,\d+\n//gm; |
175 | $update += s/^(I?EXT.*[ \t])IINIT[ \t]*\((\177)/$1$2/gm; |
176 | if (/^\n*[^\s,]+\.xs,/s) { |
177 | $mod = $cmod = $bmod = $pref = ""; |
178 | s/^(.*\n)\1+/$1/mg; # Remove duplicate lines |
179 | $_ = join("", map { |
180 | if (/^MODULE[ \t]*=[ \t]*(\S+)(?:[ \t]+PACKAGE[ \t]*=[ \t]*(\S+))?[ \t\177]/m) { |
181 | $mod = $+; |
182 | ($bmod = $mod) =~ tr/:/_/; |
183 | $cmod = "XS_${bmod}_"; |
184 | $pref = ""; |
185 | if (s/[ \t]+PREFIX[ \t]*=[ \t]*([^\s\177]+)(\177)/$+/) { |
186 | $pref = $1; |
187 | $pref =~ s/([^\w\s])/\\$1/g; |
188 | $pref = "(?:$pref)?"; |
189 | } |
190 | } elsif ($mod ne "") { |
191 | # Ref points for Module::subr, XS_Module_subr, subr |
192 | s/^($pref(\w+)[ \t()]*\177)(\d+,\d+)$/$1${mod}::${2}\01$3\n$1$2\01$3\n$1$cmod$2\01$3/gm; |
193 | # Ref for Module::bootstrap bootstrap boot_Module |
194 | s/^([ \t]*BOOT:\177)(\d+,\d+)$/$1${mod}::bootstrap\01$2\n${1}bootstrap\01$2\n${1}boot_$bmod\01$2/gm; |
195 | } |
196 | $_; |
197 | } split(/(\nMODULE[ \t]*=[^\n\177]+\177)/)); |
198 | |
199 | $update = 1; |
200 | } |
201 | if ($update) { |
202 | $chars = chomp; |
203 | s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e; |
204 | $_ .= ("\f" x $chars); |
205 | }' TAGS.tmp > TAGS.tm2 |
206 | |
207 | rm -f TAGS |
208 | mv TAGS.tm2 TAGS |
209 | rm -f TAGS.tmp |
210 | |
211 | |
212 | |