add implementationHEADmaster

4 files changed, 143 insertions, 0 deletions

diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..4cce083
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "vendor/cmmm/dynamic-array"]
+        path = vendor/cmmm/dynamic-array
+        url = https://git.michalec.dev/dynamic-array
diff --git a/include/cmmm/string-builder.h b/include/cmmm/string-builder.h
new file mode 100644
index 0000000..42fb24a
--- /dev/null
+++ b/include/cmmm/string-builder.h
@@ -0,0 +1,99 @@
+#ifndef INCLUDED__CMMM__STRING_BUILDER__H
+#define INCLUDED__CMMM__STRING_BUILDER__H
+
+// #define CMMM__STRING_BUILDER__STRIP_VENDOR
+// #define CMMM__STRING_BUILDER__SHORT_NAMESPACE
+
+#include <stddef.h>
+#include <string.h>
+#include "cmmm/dynamic-array.h"
+
+#define CMMM__STRING_BUILDER struct string_builder *
+struct cmmm__string_builder {
+  union { char *items, *string; };
+  size_t count;
+  size_t capacity;
+};
+
+#define CMMM__STRING_BUILDER__APPEND_CHAR(SB, CHAR)     \
+  CMMM__DYNAMIC_ARRAY__APPEND (SB, CHAR)
+
+#define CMMM__STRING_BUILDER__APPEND_BUF(SB, BUF, SIZE) \
+  CMMM__DYNAMIC_ARRAY__APPEND_MANY (SB, BUF, SIZE)
+
+#define CMMM__STRING_BUILDER__APPEND_CSTR(SB, CSTR)     \
+  ({                                                    \
+    const char *s = (CSTR);                             \
+    size_t      n = strlen (s);                         \
+    CMMM__DYNAMIC_ARRAY__APPEND_MANY(SB, s, n);         \
+  })
+
+#define CMMM__STRING_BUILDER__APPEND_CSTRS(SB, ...)             \
+  cmmm__string_builder__append_cstrs (&(SB), __VA_ARGS__, NULL)
+
+#define CMMM__STRING_BUILDER__APPEND_STRING_VIEW(SB, SV)                       \
+  CMMM__DYNAMIC_ARRAY__APPEND_MANY(SB, (SV).beg, CMMM__STRING_VIEW__LENGTH (SV));
+
+#define CMMM__STRING_BUILDER__APPEND_NULL(SB)   \
+  CMMM__DYNAMIC_ARRAY__APPEND (SB, '\0')
+
+#define CMMM__STRING_BUILDER__RESET(SB) CMMM__DYNAMIC_ARRAY__RESET (SB)
+#define CMMM__STRING_BUILDER__FREE( SB) CMMM__DYNAMIC_ARRAY__FREE ( SB)
+
+void cmmm__string_builder__append_ntimes (CMMM__STRING_BUILDER, char c, size_t n);
+void cmmm__string_builder__append_cstrs  (CMMM__STRING_BUILDER,                     ...);
+void cmmm__string_builder__printf        (CMMM__STRING_BUILDER, const char *format, ...);
+
+#ifdef CMMM__STRING_BUILDER__SHORT_NAMESPACE
+#define CMMM__SB_STRIP_VENDOR       CMMM__STRING_BUILDER__STRIP_VENDOR
+#define CMMM__SB_SHORT_NAMESPACE    CMMM__STRING_BUILDER__SHORT_NAMESPACE
+#define CMMM__SB                    CMMM__STRING_BUILDER
+#define cmmm__sb                    cmmm__string_builder
+#define CMMM__SB_APPEND_CHAR        CMMM__STRING_BUILDER__APPEND_CHAR
+#define CMMM__SB_APPEND_BUF         CMMM__STRING_BUILDER__APPEND_BUF
+#define CMMM__SB_APPEND_CSTR        CMMM__STRING_BUILDER__APPEND_CSTR
+#define CMMM__SB_APPEND_CSTRS       CMMM__STRING_BUILDER__APPEND_CSTRS
+#define CMMM__SB_APPEND_STRING_VIEW CMMM__STRING_BUILDER__APPEND_STRING_VIEW
+#define CMMM__SB_APPEND_NULL        CMMM__STRING_BUILDER__APPEND_NULL
+#define CMMM__SB_RESET              CMMM__STRING_BUILDER__RESET
+#define CMMM__SB_FREE               CMMM__STRING_BUILDER__FREE
+#define cmmm__sb_append_ntimes      cmmm__string_builder__append_ntimes
+#define cmmm__sb_append_cstrs       cmmm__string_builder__append_cstrs
+#define cmmm__sb_printf             cmmm__string_builder__printf
+#endif // CMMM__STRING_BUILDER__SHORT_NAMESPACE
+
+#ifdef CMMM__STRING_BUILDER__STRIP_VENDOR
+#define STRING_BUILDER__STRIP_VENDOR       CMMM__STRING_BUILDER__STRIP_VENDOR
+#define STRING_BUILDER__SHORT_NAMESPACE    CMMM__STRING_BUILDER__SHORT_NAMESPACE
+#define STRING_BUILDER                     CMMM__STRING_BUILDER
+#define STRING_BUILDER__APPEND_CHAR        CMMM__STRING_BUILDER__APPEND_CHAR
+#define STRING_BUILDER__APPEND_BUF         CMMM__STRING_BUILDER__APPEND_BUF
+#define STRING_BUILDER__APPEND_CSTR        CMMM__STRING_BUILDER__APPEND_CSTR
+#define STRING_BUILDER__APPEND_CSTRS       CMMM__STRING_BUILDER__APPEND_CSTRS
+#define STRING_BUILDER__APPEND_STRING_VIEW CMMM__STRING_BUILDER__APPEND_STRING_VIEW
+#define STRING_BUILDER__APPEND_NULL        CMMM__STRING_BUILDER__APPEND_NULL
+#define STRING_BUILDER__RESET              CMMM__STRING_BUILDER__RESET
+#define STRING_BUILDER__FREE               CMMM__STRING_BUILDER__FREE
+#define string_builder__append_ntimes      cmmm__string_builder__append_ntimes
+#define string_builder__append_cstrs       cmmm__string_builder__append_cstrs
+#define string_builder__printf             cmmm__string_builder__printf
+
+#ifdef CMMM__STRING_BUILDER__SHORT_NAMESPACE
+#define SB_STRIP_VENDOR       CMMM__STRING_BUILDER__STRIP_VENDOR
+#define SB_SHORT_NAMESPACE    CMMM__STRING_BUILDER__SHORT_NAMESPACE
+#define SB                    CMMM__STRING_BUILDER
+#define SB_APPEND_CHAR        CMMM__STRING_BUILDER__APPEND_CHAR
+#define SB_APPEND_BUF         CMMM__STRING_BUILDER__APPEND_BUF
+#define SB_APPEND_CSTR        CMMM__STRING_BUILDER__APPEND_CSTR
+#define SB_APPEND_CSTRS       CMMM__STRING_BUILDER__APPEND_CSTRS
+#define SB_APPEND_STRING_VIEW CMMM__STRING_BUILDER__APPEND_STRING_VIEW
+#define SB_APPEND_NULL        CMMM__STRING_BUILDER__APPEND_NULL
+#define SB_RESET              CMMM__STRING_BUILDER__RESET
+#define SB_FREE               CMMM__STRING_BUILDER__FREE
+#define sb_append_ntimes      cmmm__string_builder__append_ntimes
+#define sb_append_cstrs       cmmm__string_builder__append_cstrs
+#define sb_printf             cmmm__string_builder__printf
+#endif // CMMM__STRING_BUILDER__SHORT_NAMESPACE
+#endif // CMMM__STRING_BUILDER__STRIP_VENDOR
+
+#endif // INCLUDED__STRING_BUILDER__H
diff --git a/src/string-builder.c b/src/string-builder.c
new file mode 100644
index 0000000..0c53367
--- /dev/null
+++ b/src/string-builder.c
@@ -0,0 +1,41 @@
+#include "string-builder.h"
+#include <stdarg.h>
+#include <stdio.h>
+
+void
+string_builder__append_ntimes (STRING_BUILDER sb, char c, size_t n)
+{
+  DYNAMIC_ARRAY__ENSURE_CAPACITY (*sb, n);
+  memset (sb->items + sb->count, c, n);
+  sb->count += n;
+}
+
+void
+string_builder__append_cstrs (STRING_BUILDER sb, ...)
+{
+  va_list args;
+
+  va_start (args, sb);
+  const char *arg = va_arg (args, const char *);
+  while (arg) {
+    STRING_BUILDER__APPEND_CSTR(*sb, arg);
+    arg = va_arg (args, const char *);
+  } va_end (args);
+}
+
+void
+string_builder__printf (STRING_BUILDER sb, const char *format, ...)
+{
+  va_list args;
+
+  va_start (args, format);
+  int size = vsnprintf (NULL, 0, format, args);
+  va_end (args);
+  ASSERT (size >= 0);
+
+  DYNAMIC_ARRAY__ENSURE_CAPACITY (*sb, size + 1);
+  va_start (args, format);
+  vsnprintf (&sb->items[sb->count], size + 1, format, args);
+  va_end (args);
+  sb->count += size;
+}
diff --git a/vendor/cmmm/dynamic-array b/vendor/cmmm/dynamic-array
new file mode 160000
+Subproject f6e9aa1f489f2aa052e2caa5748f8d081346b8b