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/*
* renderer-msvc.c
* MSVC library syntax renderer
*
* Copyright (c) 2017 pkgconf authors (see AUTHORS).
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* This software is provided 'as is' and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising
* from the use of this software.
*/
#include <string.h>
#include <stdlib.h>
#include <libpkgconf/libpkgconf.h>
#include "renderer-msvc.h"
static inline bool
fragment_should_quote(const pkgconf_fragment_t *frag)
{
const char *src;
if (frag->data == NULL)
return false;
for (src = frag->data; *src; src++)
{
if (((*src < ' ') ||
(*src >= (' ' + (frag->merged ? 1 : 0)) && *src < '$') ||
(*src > '$' && *src < '(') ||
(*src > ')' && *src < '+') ||
(*src > ':' && *src < '=') ||
(*src > '=' && *src < '@') ||
(*src > 'Z' && *src < '^') ||
(*src == '`') ||
(*src > 'z' && *src < '~') ||
(*src > '~')))
return true;
}
return false;
}
static inline size_t
fragment_len(const pkgconf_fragment_t *frag)
{
size_t len = 1;
if (frag->type)
len += 2;
if (frag->data != NULL)
{
len += strlen(frag->data);
if (fragment_should_quote(frag))
len += 2;
}
return len;
}
static inline bool
allowed_fragment(const pkgconf_fragment_t *frag)
{
return !(!frag->type || frag->data == NULL || strchr("DILl", frag->type) == NULL);
}
static size_t
msvc_renderer_render_len(const pkgconf_list_t *list, bool escape)
{
(void) escape;
size_t out = 1; /* trailing nul */
pkgconf_node_t *node;
PKGCONF_FOREACH_LIST_ENTRY(list->head, node)
{
const pkgconf_fragment_t *frag = node->data;
if (!allowed_fragment(frag))
continue;
switch (frag->type)
{
case 'L':
out += 9; /* "/libpath:" */
break;
case 'l':
out += 4; /* ".lib" */
break;
default:
break;
}
out += fragment_len(frag);
}
return out;
}
static void
msvc_renderer_render_buf(const pkgconf_list_t *list, char *buf, size_t buflen, bool escape)
{
pkgconf_node_t *node;
char *bptr = buf;
memset(buf, 0, buflen);
PKGCONF_FOREACH_LIST_ENTRY(list->head, node)
{
const pkgconf_fragment_t *frag = node->data;
size_t buf_remaining = buflen - (bptr - buf);
size_t cnt;
if (!allowed_fragment(frag))
continue;
if (fragment_len(frag) > buf_remaining)
break;
switch(frag->type) {
case 'D':
case 'I':
*bptr++ = '/';
*bptr++ = frag->type;
break;
case 'L':
cnt = pkgconf_strlcpy(bptr, "/libpath:", buf_remaining);
bptr += cnt;
buf_remaining -= cnt;
break;
}
escape = fragment_should_quote(frag);
if (escape)
*bptr++ = '"';
cnt = pkgconf_strlcpy(bptr, frag->data, buf_remaining);
bptr += cnt;
buf_remaining -= cnt;
if (frag->type == 'l')
{
cnt = pkgconf_strlcpy(bptr, ".lib", buf_remaining);
bptr += cnt;
buf_remaining -= cnt;
}
if (escape)
*bptr++ = '"';
*bptr++ = ' ';
}
*bptr = '\0';
}
static const pkgconf_fragment_render_ops_t msvc_renderer_ops = {
.render_len = msvc_renderer_render_len,
.render_buf = msvc_renderer_render_buf
};
const pkgconf_fragment_render_ops_t *
msvc_renderer_get(void)
{
return &msvc_renderer_ops;
}
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