X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fline-buffer.c;h=146ca00a92847e93d5179a85a8180fa53f1946c2;hb=138216a0d401770c367d8f515ac06c98e5dfb528;hp=e451532082b06a9f88ac10ed8fcf0cf6ed289892;hpb=9f1d9ea8ac4f5e35a773581cf3d5ebd9e219bff8;p=pspp

diff --git a/src/language/line-buffer.c b/src/language/line-buffer.c
index e451532082..146ca00a92 100644
--- a/src/language/line-buffer.c
+++ b/src/language/line-buffer.c
@@ -31,6 +31,7 @@
 #include <language/command.h>
 #include <language/lexer/lexer.h>
 #include <libpspp/alloc.h>
+#include <libpspp/assertion.h>
 #include <libpspp/message.h>
 #include <libpspp/message.h>
 #include <libpspp/str.h>
@@ -85,7 +86,7 @@ struct getl_source
         function;
 
         /* INTERACTIVE. */
-        bool (*interactive) (struct string *line, const char *prompt);
+        bool (*interactive) (struct string *line, enum getl_prompt_style);
       }
     u;
 
@@ -103,15 +104,15 @@ static void close_source (void);
 
 static void init_prompts (void);
 static void uninit_prompts (void);
-static const char *get_prompt (void);
+static enum getl_prompt_style get_prompt_style (void);
 
 /* Initialize getl. */
 void
 getl_initialize (void)
 {
-  ds_create (&getl_include_path,
-	     fn_getenv_default ("STAT_INCLUDE_PATH", include_path));
-  ds_init (&getl_buf, 256);
+  ds_init_cstr (&getl_include_path,
+                fn_getenv_default ("STAT_INCLUDE_PATH", include_path));
+  ds_init_empty (&getl_buf);
   init_prompts ();
 }
 
@@ -127,9 +128,9 @@ void
 getl_add_include_dir (const char *path)
 {
   if (ds_length (&getl_include_path))
-    ds_putc (&getl_include_path, ':');
+    ds_put_char (&getl_include_path, ':');
 
-  ds_puts (&getl_include_path, path);
+  ds_put_cstr (&getl_include_path, path);
 }
 
 /* Appends source S to the list of source files. */
@@ -214,7 +215,7 @@ create_function_source (bool (*read) (struct string *line,
 /* Creates an interactive source with the given FUNCTION. */
 static struct getl_source *
 create_interactive_source (bool (*function) (struct string *line,
-                                             const char *prompt)) 
+                                             enum getl_prompt_style)) 
 {
   struct getl_source *s = xmalloc (sizeof *s);
   s->fn = NULL;
@@ -239,7 +240,7 @@ getl_include_syntax_file (const char *fn)
 {
   if (cur_source != NULL) 
     {
-      char *found_fn = fn_search_path (fn, ds_c_str (&getl_include_path),
+      char *found_fn = fn_search_path (fn, ds_cstr (&getl_include_path),
                                        fn_dir_name (cur_source->fn));
       if (found_fn != NULL) 
         {
@@ -297,7 +298,7 @@ getl_include_function (bool (*read) (struct string *line,
    obtained or false at end of file. */
 void
 getl_append_interactive (bool (*function) (struct string *line,
-                                           const char *prompt)) 
+                                           enum getl_prompt_style)) 
 {
   append_source (create_interactive_source (function));
 }
@@ -377,6 +378,7 @@ getl_location (const char **fn, int *ln)
 
 /* File locator stack. */
 static const struct msg_locator **file_loc;
+
 static int nfile_loc, mfile_loc;
 
 /* Close getl. */
@@ -423,10 +425,10 @@ msg_pop_msg_locator (const struct msg_locator *loc)
   nfile_loc--;
 }
 
-/* Puts the current file and line number in F, or NULL and -1 if
+/* Puts the current file and line number into LOC, or NULL and -1 if
    none. */
 void
-msg_location (struct msg_locator *loc)
+get_msg_location (struct msg_locator *loc)
 {
   if (nfile_loc)
     *loc = *file_loc[nfile_loc - 1];
@@ -457,7 +459,7 @@ read_syntax_file (struct string *line, struct getl_source *s)
   do 
     {
       s->ln++;
-      if (!ds_gets (line, s->u.syntax_file))
+      if (!ds_read_line (line, s->u.syntax_file))
         {
           if (ferror (s->u.syntax_file))
             msg (ME, _("Reading `%s': %s."), s->fn, strerror (errno));
@@ -465,11 +467,11 @@ read_syntax_file (struct string *line, struct getl_source *s)
         }
       ds_chomp (line, '\n');
     }
-  while (s->ln == 1 && !memcmp (ds_c_str (line), "#!", 2));
+  while (s->ln == 1 && !memcmp (ds_cstr (line), "#!", 2));
 
   /* Echo to listing file, if configured to do so. */
   if (get_echo ())
-    tab_output_text (TAB_LEFT | TAB_FIX, ds_c_str (line));
+    tab_output_text (TAB_LEFT | TAB_FIX, ds_cstr (line));
 
   return true;
 }
@@ -489,10 +491,10 @@ read_line_from_source (struct string *line, struct getl_source *s)
     case FUNCTION:
       return s->u.function.read (line, &s->fn, &s->ln, s->u.function.aux);
     case INTERACTIVE:
-      return s->u.interactive (line, get_prompt ());
+      return s->u.interactive (line, get_prompt_style ());
     }
 
-  abort ();
+  NOT_REACHED ();
 }
 
 /* Reads a single line into LINE.
@@ -589,8 +591,8 @@ getl_set_prompt_style (enum getl_prompt_style style)
 }
 
 /* Returns the current prompt. */
-static const char *
-get_prompt (void) 
+static enum getl_prompt_style
+get_prompt_style (void) 
 {
-  return prompts[current_style];
+  return current_style;
 }