Add vim again :)

1 files changed, 164 insertions, 0 deletions

diff --git a/vim/tmp/command_t/ruby/command-t/matcher.c b/vim/tmp/command_t/ruby/command-t/matcher.c
new file mode 100644
index 0000000..7cd8a3e
--- /dev/null
+++ b/vim/tmp/command_t/ruby/command-t/matcher.c
@@ -0,0 +1,164 @@
+// Copyright 2010 Wincent Colaiuta. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice,
+//    this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation
+//    and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdlib.h> /* for qsort() */
+#include <string.h> /* for strcmp() */
+#include "matcher.h"
+#include "ext.h"
+#include "ruby_compat.h"
+
+// comparison function for use with qsort
+int comp_alpha(const void *a, const void *b)
+{
+    VALUE a_val = *(VALUE *)a;
+    VALUE b_val = *(VALUE *)b;
+    ID to_s = rb_intern("to_s");
+
+    VALUE a_str = rb_funcall(a_val, to_s, 0);
+    VALUE b_str = rb_funcall(b_val, to_s, 0);
+    char *a_p = RSTRING_PTR(a_str);
+    long a_len = RSTRING_LEN(a_str);
+    char *b_p = RSTRING_PTR(b_str);
+    long b_len = RSTRING_LEN(b_str);
+    int order = 0;
+    if (a_len > b_len)
+    {
+        order = strncmp(a_p, b_p, b_len);
+        if (order == 0)
+            order = 1; // shorter string (b) wins
+    }
+    else if (a_len < b_len)
+    {
+        order = strncmp(a_p, b_p, a_len);
+        if (order == 0)
+            order = -1; // shorter string (a) wins
+    }
+    else
+        order = strncmp(a_p, b_p, a_len);
+    return order;
+}
+
+// comparison function for use with qsort
+int comp_score(const void *a, const void *b)
+{
+    VALUE a_val = *(VALUE *)a;
+    VALUE b_val = *(VALUE *)b;
+    ID score = rb_intern("score");
+    double a_score = RFLOAT_VALUE(rb_funcall(a_val, score, 0));
+    double b_score = RFLOAT_VALUE(rb_funcall(b_val, score, 0));
+    if (a_score > b_score)
+        return -1; // a scores higher, a should appear sooner
+    else if (a_score < b_score)
+        return 1;  // b scores higher, a should appear later
+    else
+        return comp_alpha(a, b);
+}
+
+VALUE CommandTMatcher_initialize(int argc, VALUE *argv, VALUE self)
+{
+    // process arguments: 1 mandatory, 1 optional
+    VALUE scanner, options;
+    if (rb_scan_args(argc, argv, "11", &scanner, &options) == 1)
+        options = Qnil;
+    if (NIL_P(scanner))
+        rb_raise(rb_eArgError, "nil scanner");
+    rb_iv_set(self, "@scanner", scanner);
+
+    // check optional options hash for overrides
+    VALUE always_show_dot_files = CommandT_option_from_hash("always_show_dot_files", options);
+    if (always_show_dot_files != Qtrue)
+        always_show_dot_files = Qfalse;
+    VALUE never_show_dot_files = CommandT_option_from_hash("never_show_dot_files", options);
+    if (never_show_dot_files != Qtrue)
+        never_show_dot_files = Qfalse;
+    rb_iv_set(self, "@always_show_dot_files", always_show_dot_files);
+    rb_iv_set(self, "@never_show_dot_files", never_show_dot_files);
+    return Qnil;
+}
+
+VALUE CommandTMatcher_sorted_matches_for(VALUE self, VALUE abbrev, VALUE options)
+{
+    // process optional options hash
+    VALUE limit_option = CommandT_option_from_hash("limit", options);
+
+    // get unsorted matches
+    VALUE matches = CommandTMatcher_matches_for(self, abbrev);
+
+    abbrev = StringValue(abbrev);
+    if (RSTRING_LEN(abbrev) == 0 ||
+        (RSTRING_LEN(abbrev) == 1 && RSTRING_PTR(abbrev)[0] == '.'))
+        // alphabetic order if search string is only "" or "."
+        qsort(RARRAY_PTR(matches), RARRAY_LEN(matches), sizeof(VALUE), comp_alpha);
+    else
+        // for all other non-empty search strings, sort by score
+        qsort(RARRAY_PTR(matches), RARRAY_LEN(matches), sizeof(VALUE), comp_score);
+
+    // apply optional limit option
+    long limit = NIL_P(limit_option) ? 0 : NUM2LONG(limit_option);
+    if (limit == 0 || RARRAY_LEN(matches) < limit)
+        limit = RARRAY_LEN(matches);
+
+    // will return an array of strings, not an array of Match objects
+    for (long i = 0; i < limit; i++)
+    {
+        VALUE str = rb_funcall(RARRAY_PTR(matches)[i], rb_intern("to_s"), 0);
+        RARRAY_PTR(matches)[i] = str;
+    }
+
+    // trim off any items beyond the limit
+    if (limit < RARRAY_LEN(matches))
+        (void)rb_funcall(matches, rb_intern("slice!"), 2, LONG2NUM(limit),
+            LONG2NUM(RARRAY_LEN(matches) - limit));
+    return matches;
+}
+
+VALUE CommandTMatcher_matches_for(VALUE self, VALUE abbrev)
+{
+    if (NIL_P(abbrev))
+        rb_raise(rb_eArgError, "nil abbrev");
+    VALUE matches = rb_ary_new();
+    VALUE scanner = rb_iv_get(self, "@scanner");
+    VALUE always_show_dot_files = rb_iv_get(self, "@always_show_dot_files");
+    VALUE never_show_dot_files = rb_iv_get(self, "@never_show_dot_files");
+    VALUE options = Qnil;
+    if (always_show_dot_files == Qtrue)
+    {
+        options = rb_hash_new();
+        rb_hash_aset(options, ID2SYM(rb_intern("always_show_dot_files")), always_show_dot_files);
+    }
+    else if (never_show_dot_files == Qtrue)
+    {
+        options = rb_hash_new();
+        rb_hash_aset(options, ID2SYM(rb_intern("never_show_dot_files")), never_show_dot_files);
+    }
+    abbrev = rb_funcall(abbrev, rb_intern("downcase"), 0);
+    VALUE paths = rb_funcall(scanner, rb_intern("paths"), 0);
+    for (long i = 0, max = RARRAY_LEN(paths); i < max; i++)
+    {
+        VALUE path = RARRAY_PTR(paths)[i];
+        VALUE match = rb_funcall(cCommandTMatch, rb_intern("new"), 3, path, abbrev, options);
+        if (rb_funcall(match, rb_intern("matches?"), 0) == Qtrue)
+            rb_funcall(matches, rb_intern("push"), 1, match);
+    }
+    return matches;
+}