[PATCH] improve the performance of htags

[Hideki IWAMOTO]

This is a patch for improving the performance of htags 
by decreasing the frequency of invoking parser.

diffstat
 htags/anchor.c |  146 ++++++++++++++++++++++++++++++++++++++++++++++-----------
 htags/anchor.h |    4 +
 htags/htags.c  |   69 +++++++++++++++++++++++---
 3 files changed, 184 insertions(+), 35 deletions(-)

Comparison of execution time
  (GTAGSCACHE=100000000, format=compact, htags_options=-aDfFnosx)
==== current cvs version ====
[linux-2.0.40]$ time htags --statistics
- Elapsed time of making duplicate entries ............         12 seconds.
- Elapsed time of making function index ...............          1 seconds.
- Elapsed time of making file index ...................          1 seconds.
- Elapsed time of making include file index ...........          2 seconds.
- Elapsed time of making hypertext ....................         64 seconds.
- The entire elapsed time .............................         80 seconds.
39.316u 36.033s 1:24.23 89.4%   0+0k 0+0io 3pf+0w
==== patched version ==== 
[linux-2.0.40]$ time htags --statistics
- Elapsed time of making duplicate entries ............         12 seconds.
- Elapsed time of making function index ...............          0 seconds.
- Elapsed time of making file index ...................          2 seconds.
- Elapsed time of making include file index ...........          4 seconds.
- Elapsed time of making hypertext ....................         30 seconds.
- The entire elapsed time .............................         48 seconds.
31.934u 9.837s 0:54.96 75.9%    0+0k 0+0io 0pf+0w

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Hideki IWAMOTO  address@hidden

htags-anchor.patch
Description: Binary data