sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 186 insertions, 0 deletions

diff --git a/src/SDCCmacro.c b/src/SDCCmacro.c
new file mode 100644
index 0000000..e71a7f7
--- /dev/null
+++ b/src/SDCCmacro.c
@@ -0,0 +1,186 @@
+/*-------------------------------------------------------------------------
+  SDCCmain.c - Macro support code.
+
+             Written By -  Sandeep Dutta . sandeep.dutta@usa.net (1999)
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   In other words, you are welcome to use, share and improve this program.
+   You are forbidden to forbid anyone else to use, share and improve
+   what you give them.   Help stamp out software-hoarding!
+-------------------------------------------------------------------------*/
+
+#include "common.h"
+#include "dbuf_string.h"
+
+char *
+eval_macros (hTab * pvals, const char *pfrom)
+{
+  bool fdidsomething = FALSE;
+  char quote = '\0';
+  struct dbuf_s dbuf;
+
+  assert (pvals);
+  assert (pfrom);
+
+  dbuf_init (&dbuf, 256);
+  while (*pfrom)
+    {
+      switch (*pfrom)
+        {
+        case '"':
+        case '\'':
+          if (quote != '\0')
+            {
+              /* write previous quote */
+              dbuf_append_char (&dbuf, quote);
+            }
+          quote = *pfrom++;
+          break;
+
+        case '{':
+          {
+            const char *pend = ++pfrom;
+            const char *pval;
+            char *name;
+
+            /* Find the end of macro */
+            while (*pend && '}' != *pend)
+              {
+                pend++;
+              }
+            if ('}' != *pend)
+              {
+                wassertl (0, "Unterminated macro expansion");
+              }
+
+            name = Safe_strndup (pfrom, pend - pfrom);
+
+            /* Look up the value in the hash table */
+            pval = shash_find (pvals, name);
+            Safe_free (name);
+
+            if (NULL == pval)
+              {
+                /* Empty macro value */
+                if ('\0' != quote)
+                  {
+                    /* It was a quote */
+                    if (pend[1] == quote)
+                      {
+                        /* Start quote equals end quote: skip both */
+                        ++pend;
+                      }
+                    else
+                      {
+                        /* Start quote not equals end quote: add both */
+                        dbuf_append_char (&dbuf, quote);
+                      }
+                  }
+              }
+            else
+              {
+                if ('\0' != quote)
+                  {
+                    dbuf_append_char (&dbuf, quote);
+                  }
+                dbuf_append_str (&dbuf, pval);
+                fdidsomething = TRUE;
+              }
+
+            quote = '\0';
+            pfrom = pend + 1;
+          }
+          break;
+
+        default:
+          if ('\0' != quote)
+            {
+              dbuf_append_char (&dbuf, quote);
+              quote = '\0';
+            }
+
+          dbuf_append_char (&dbuf, *pfrom++);
+        }
+    }
+
+  if ('\0' != quote)
+    {
+      dbuf_append_char (&dbuf, quote);
+    }
+
+
+  /* If we did something then recursivly expand any expanded macros */
+  if (fdidsomething)
+    {
+      char *ret = eval_macros (pvals, dbuf_c_str (&dbuf));
+      dbuf_destroy (&dbuf);
+      return ret;
+    }
+
+  return dbuf_detach_c_str (&dbuf);
+}
+
+char *
+mvsprintf (hTab * pvals, const char *pformat, va_list ap)
+{
+  char *p;
+  struct dbuf_s dbuf;
+
+  dbuf_init (&dbuf, 256);
+
+  /* Recursivly evaluate all the macros in the string */
+  p = eval_macros (pvals, pformat);
+
+  /* Evaluate all the arguments */
+  dbuf_vprintf (&dbuf, p, ap);
+  Safe_free (p);
+
+  /* Recursivly evaluate any macros that were used as arguments */
+  p = eval_macros (pvals, dbuf_c_str (&dbuf));
+  dbuf_destroy (&dbuf);
+  return p;
+}
+
+char *
+msprintf (hTab * pvals, const char *pformat, ...)
+{
+  va_list ap;
+  char *pret;
+
+  va_start (ap, pformat);
+
+  pret = mvsprintf (pvals, pformat, ap);
+
+  va_end (ap);
+
+  return pret;
+}
+
+void
+mfprintf (FILE * fp, hTab * pvals, const char *pformat, ...)
+{
+  va_list ap;
+  char *p;
+
+  va_start (ap, pformat);
+
+  p = mvsprintf (pvals, pformat, ap);
+
+  va_end (ap);
+
+  fputs (p, fp);
+  Safe_free (p);
+}