support UNIX-shell-like tilde-expansions in file names and directories

 * expands to the value of $HOME (the env variable instead of
   the register which currently makes a slight difference).
 * supported for tab-completions
 * supported for all file-name accepting commands.
   The expansion is done centrally in StateExpectFile::done().
   A new virtual method StateExpectFile::got_file() has been
   introduced to pass the expanded/processed file name to
   command implementations.
 * sciteco(7) has been updated: There is now a separate section
   on file name arguments and file name handling in SciTECO.
   This information is important but has been scattered across
   the document previously.
 * optimized is_glob_pattern() in glob.h

1 files changed, 12 insertions, 5 deletions

diff --git a/src/glob.h b/src/glob.h
index a289228..75361b8 100644
--- a/src/glob.h
+++ b/src/glob.h
@@ -18,8 +18,6 @@
 #ifndef __GLOB_H
 #define __GLOB_H
 
-#include <string.h>
-
 #include <glib.h>
 #include <glib/gstdio.h>
 
@@ -34,7 +32,16 @@ namespace SciTECO {
 static inline bool
 is_glob_pattern(const gchar *str)
 {
-	return strchr(str, '*') || strchr(str, '?');
+	if (!str)
+		return false;
+
+	while (*str) {
+		if (*str == '*' || *str == '?')
+			return true;
+		str++;
+	}
+
+	return false;
 }
 
 class Globber {
@@ -60,12 +67,12 @@ public:
 	StateGlob_pattern() : StateExpectFile(true, false) {}
 
 private:
-	State *done(const gchar *str);
+	State *got_file(const gchar *filename);
 };
 
 class StateGlob_filename : public StateExpectFile {
 private:
-	State *done(const gchar *str);
+	State *got_file(const gchar *filename);
 };
 
 namespace States {