1 files changed, 79 insertions, 0 deletions
diff --git a/src/varchar.h b/src/varchar.h
new file mode 100644
index 0000000..7dd15e3
--- /dev/null
+++ b/src/varchar.h
@@ -0,0 +1,79 @@
+/*
+
+    casm - Simple, portable assembler
+
+    Copyright (C) 2003-2015  Ian Cowburn (ianc@noddybox.demon.co.uk)
+
+    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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
+
+    -------------------------------------------------------------------------
+
+    Simple dynamic variable length string.
+
+*/
+
+#ifndef CASM_VARCHAR_H
+#define CASM_VARCHAR_H
+
+typedef struct varchar Varchar;
+
+/* ---------------------------------------- INTERFACES
+*/
+
+/* Create a new string.  Initial contents set to pointer if not NULL.
+*/
+Varchar *VarcharCreate(const char *initial);
+
+
+/* Add a character to a string.  Returns the passed Varchar.
+*/
+Varchar *VarcharAddChar(Varchar *str, int c);
+
+
+/* Add a string to the string.  Returns the passed Varchar.
+*/
+Varchar *VarcharAdd(Varchar *str, const char *c);
+
+
+/* Adds a formatted string to the string.  The formatted string must be less
+   than 1024 character or it will be truncated.  Returns the passed Varchar.
+*/
+Varchar *VarcharPrintf(Varchar *str, const char *fmt, ...);
+
+
+/* Get the contents of a string, keeping ownership of it
+*/
+const char *VarcharContents(Varchar *str);
+
+
+/* Transfer the contents of a string, so that the returned string can be
+   freed.  The Varchar container is destroyed and should not be used again.
+*/
+char *VarcharTransfer(Varchar *str);
+
+
+/* Clear a Varchar back to an empty string.
+*/
+void VarcharClear(Varchar *str);
+
+
+/* Release the string and the container.
+*/
+void VarcharFree(Varchar *str);
+
+#endif
+
+/*
+vim: ai sw=4 ts=8 expandtab
+*/