From d46183860c1f3f10095e95023adcb79b1896ab0e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hugo=20H=C3=B6rnquist?= <hugo@lysator.liu.se>
Date: Fri, 22 Mar 2019 20:11:11 +0100
Subject: Move C and Scheme code into subdirs.

---
 src/strbuf.h | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 src/strbuf.h

(limited to 'src/strbuf.h')

diff --git a/src/strbuf.h b/src/strbuf.h
new file mode 100644
index 00000000..7f936a9e
--- /dev/null
+++ b/src/strbuf.h
@@ -0,0 +1,109 @@
+#ifndef STRBUF_H
+#define STRBUF_H
+
+#include <stdlib.h>
+#include <libguile.h>
+#include "macro.h"
+
+/*
+ * A high level string type which holds it's own length, how much
+ * memmory it has allocated for itself, and a seek pointer into the
+ * string.
+ *
+ * Also comes with a number of functions which allow for safe(er)
+ * access to the memmory.
+ */
+typedef struct {
+	char* mem;
+	SCM scm;
+	/* TODO add support for negative ptr */
+	int ptr;
+	unsigned int alloc;
+	unsigned int len;
+} strbuf;
+
+/*
+ * Init strbuf to size of 10
+ */
+INIT_F(strbuf);
+
+/*
+ * Like realloc, but for strbuf
+ */
+int strbuf_realloc(strbuf* str, size_t len);
+
+/*
+ * Free's contents of str, but keeps str.
+ */
+FREE_F(strbuf);
+
+int strbuf_cmp(strbuf* a, strbuf* b);
+int strbuf_c(strbuf* a, const char* b);
+
+/*
+ * Copy contents from src to dest.
+ * Assumes that dest is already initialized.
+ */
+int DEEP_COPY(strbuf)(strbuf*, strbuf*);
+
+/*
+ * Append char to end of strbuf, determined by s->len.
+ *
+ * TODO rename this PUSH(strbuf)?
+ */
+int strbuf_append(strbuf* s, char c);
+
+char strbuf_pop(strbuf*);
+
+/*
+ * Calls strbuf_append with NULL.
+ */
+int strbuf_cap(strbuf* s);
+
+/*
+ * Returns a pointer to character at index. Allows mutation of the
+ * value pointed to by the return address.
+ */
+char* charat(strbuf* s, unsigned int idx);
+
+/*
+ * Same as `charat`, But returns the current character.
+ */
+char* strbuf_cur(strbuf* s);
+
+/*
+ * Resets the seek for strbuf to 0.
+ */
+int strbuf_reset(strbuf* s);
+
+/*
+ * Sets the length and seek ptr to 0, but doesn't touch the memmory.
+ */
+int strbuf_soft_reset(strbuf* s);
+
+/*
+ * Returns the character after the last, so where null hopefully is.
+ */
+char* strbuf_end(strbuf* s);
+
+/*
+ * Reallocs dest to be the same size as src, and copies the contents
+ * of src into dest.
+ */
+int strbuf_realloc_copy(strbuf* dest, strbuf* src);
+
+/*
+ * Copies contents from src to dest, also allocating dest in the
+ * process. dest should not be initialized before self call.
+ */
+int strbuf_init_copy(strbuf* dest, strbuf* src);
+
+strbuf* RESOLVE(strbuf)(strbuf*, strbuf*);
+
+FMT_F(strbuf);
+
+int SIZE(strbuf)(strbuf*);
+
+int strbuf_load(strbuf* self, const char* str);
+
+#endif /* STRBUF_H */
-- 
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