Mercurial > vim
annotate src/create_cmdidxs.pl @ 11240:06307d812ca7 v8.0.0506
patch 8.0.0506: can't build with ANSI C
commit https://github.com/vim/vim/commit/6c0c1e8052811a818739e2f3d543291b7a347ad0
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Mar 25 15:07:43 2017 +0100
patch 8.0.0506: can't build with ANSI C
Problem: Can't build with ANSI C.
Solution: Move declarations to start of block.
author | Christian Brabandt <cb@256bit.org> |
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date | Sat, 25 Mar 2017 15:15:05 +0100 |
parents | 62c96fee518e |
children | 17ba19406c50 |
rev | line source |
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1 #!/usr/bin/perl -w |
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2 # |
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3 # This script generates the tables cmdidxs1[] and cmdidxs2[][] which, |
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4 # given a Ex command, determine the first value to probe to find |
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5 # a matching command in cmdnames[] based on the first character |
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6 # and the first 2 characters of the command. |
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7 # This is used to speed up lookup in cmdnames[]. |
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8 # |
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9 # Script should be run every time new Ex commands are added in Vim, |
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10 # from the src/vim directory, since it reads commands from "ex_cmds.h". |
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11 |
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12 # Find the list of Vim commands from cmdnames[] table in ex_cmds.h |
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13 my @cmds; |
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14 my @skipped; |
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15 open(IN, "< ex_cmds.h") or die "can't open ex_cmds.h: $!\n"; |
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16 while (<IN>) { |
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17 if (/^EX\(CMD_\S*,\s*"([a-z][^"]*)"/) { |
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18 push (@cmds, $1); |
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19 } elsif (/^EX\(CMD_/) { |
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20 push (@skipped, $1); |
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21 } |
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22 } |
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23 |
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24 my %cmdidxs1; |
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25 my %cmdidxs2; |
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26 |
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27 for (my $i = $#cmds; $i >= 0; --$i) { |
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28 my $cmd = $cmds[$i]; |
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29 my $c1 = substr($cmd, 0, 1); # First character of command. |
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30 |
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31 $cmdidxs1{$c1} = $i; |
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32 |
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33 if (length($cmd) > 1) { |
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34 my $c2 = substr($cmd, 1, 1); # Second character of command. |
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35 $cmdidxs2{$c1}{$c2} = $i if (('a' lt $c2) and ($c2 lt 'z')); |
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36 } |
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37 } |
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38 |
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39 print "/* Beginning of automatically generated code by create_cmdidxs.pl\n", |
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40 " *\n", |
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41 " * Table giving the index of the first command in cmdnames[] to lookup\n", |
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42 " * based on the first letter of a command.\n", |
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43 " */\n", |
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44 "static const unsigned short cmdidxs1[26] =\n{\n", |
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45 join(",\n", map(" /* $_ */ $cmdidxs1{$_}", ('a' .. 'z'))), |
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46 "\n};\n", |
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47 "\n", |
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48 "/*\n", |
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49 " * Table giving the index of the first command in cmdnames[] to lookup\n", |
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50 " * based on the first 2 letters of a command.\n", |
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51 " * Values in cmdidxs2[c1][c2] are relative to cmdidxs1[c1] so that they\n", |
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52 " * fit in a byte.\n", |
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53 " */\n", |
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54 "static const unsigned char cmdidxs2[26][26] =\n", |
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55 "{ /* a b c d e f g h i j k l m n o p q r s t u v w x y z */\n"; |
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56 for my $c1 ('a' .. 'z') { |
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57 print " /* $c1 */ {"; |
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58 for my $c2 ('a' .. 'z') { |
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59 if (exists $cmdidxs2{$c1}{$c2}) { |
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60 printf "%3d,", $cmdidxs2{$c1}{$c2} - $cmdidxs1{$c1}; |
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61 } else { |
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62 printf " 0,"; |
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63 } |
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64 } |
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65 print " }"; |
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66 print "," unless ($c1 eq 'z'); |
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67 print "\n"; |
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68 } |
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69 print "};\n", |
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70 "\n", |
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71 "static int command_count = ", $#cmds + $#skipped + 2 , ";\n", |
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72 "\n", |
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73 "/* End of automatically generated code by create_cmdidxs.pl */\n"; |
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74 |