acl4のページ0019
(1) 概要
- a4_0019 は、 acl4v1 にとっての4番目のライブラリプログラムになります。
- 提供される主な機能は、以下の通りです。
- (1-1)VecChrに対するprintfなど
- (1-2)VecChrを使ったファイル入出力など
- 以下、それぞれについてもう少し詳しく説明します。
- (1-1)VecChrに対するprintfなど
- printf/vprintf/putc/puts のほかに、 VecChr の一部を置換する replace 関数もあります。
- (1-2)VecChrを使ったファイル入出力など
- readFileAll/writeFileAll などのほかにコマンドライン引数を簡単に取得するための getArg もあります。
(2) デモ
(3) ライブラリプログラム
#if (a_Version >= 1)
#define VecChr_iniCpy a_VecChr_iniCpy
#define VecChr_iniCpy0 a_VecChr_iniCpy0
#define VecChr_replace a_VecChr_replace
#define VecChr_vprintf a_VecChr_vprintf
#define VecChr_printf a_VecChr_printf
#define VecChr_putc a_VecChr_putc
#define VecChr_puts a_VecChr_puts
#define hexDump a_hexDump
#endif
a_static void a_VecChr_iniCpy(_aDef_ a_VecChr *w, const char *s, intptr_t n)
{
if (n < 0) n = strlen(s);
a_VecChr_ini(_aThr_ w);
a_VecChr_resize(w, n);
a_memcpy(w->p, s, n);
}
a_static void a_VecChr_iniCpy0(_aDef_ a_VecChr *w, const char *s, intptr_t n)
{
a_VecChr_iniCpy(_aThr_ w, s, n);
a_VecChr_reserve0(w);
}
a_static void a_VecChr_replace(a_VecChr *w, intptr_t pos0, intptr_t n0, const void *p1, intptr_t n1)
{
#if (a_DbgLv >= 2)
if (pos0 < 0) a_errExit("VecChr_replace: pos0=%d", (int) pos0);
if (n0 < 0) a_errExit("VecChr_replace: n0=%d", (int) n0);
if (n1 < 0) a_errExit("VecChr_replace: n1=%d", (int) n1);
if (pos0 + n0 > a_VecChr_N(w)) a_errExit("VecChr_replace: pos0+n0=%d VecChr_N()=%d", (int) (pos0 + n0), (int) a_VecChr_N(w));
#endif
intptr_t diff = n1 - n0, pos1 = pos0 + n0, n2 = a_VecChr_N(w) - pos1;
a_VecChr_resizeDiff(w, diff);
a_memmove(w->p + pos1 + diff, w->p + pos1, n2);
a_memcpy(w->p + pos0, p1, n1);
}
a_static intptr_t a_VecChr_vprintf(a_VecChr *w, const char *f, va_list a)
{
intptr_t n = ((intptr_t *) w->p)[-1], d = a_VecChr_N1(w) - n;
intptr_t i = vsnprintf(w->p + n, d, f, a);
if (i <= 0) goto fin;
if (i + 1 > d) {
a_VecChr_reserveDiff(w, i + 1);
d = ((intptr_t *) w->p)[-2] - n;
i = vsnprintf(w->p + n, d, f, a);
if (i <= 0) goto fin;
}
((intptr_t *) w->p)[-1] += i;
fin:
return i;
}
a_static intptr_t a_VecChr_printf(a_VecChr *w, const char *f, ...)
{
va_list ap;
va_start(ap, f);
intptr_t i = a_VecChr_vprintf(w, f, ap);
va_end(ap);
return i;
}
a_static int a_VecChr_putc(a_VecChr *w, int c)
{
a_VecChr_reserveDiff(w, 2);
intptr_t n = a_VecChr_N(w);
w->p[n++] = (char) c;
w->p[n ] = '\0';
a_VecChr_N(w) = n;
return c;
}
a_static void a_VecChr_puts(a_VecChr *w, const char *s, intptr_t n)
{
if (n < 0) n = strlen(s);
a_VecChr_reserveDiff(w, n + 1);
a_memcpy(w->p + a_VecChr_N(w), s, n);
a_VecChr_N(w) += n;
w->p[a_VecChr_N(w)] = '\0';
}
a_static void a_hexDump(const char *s, intptr_t n, FILE *fp)
{
intptr_t i;
fprintf(fp, "[");
for (i = 0; i < n; i++)
fprintf(fp, "%02X ", ((unsigned char *) s)[i]);
fprintf(fp, "]\n");
}
#if (a_Version >= 1)
#define VecChr_readFileAll a_VecChr_readFileAll
#define VecChr_readFileAll_errChk a_VecChr_readFileAll_errChk
#define VecChr_eraseCr a_VecChr_eraseCr
#define VecChr_gets a_VecChr_gets
#define VecChr_writeFileAll a_VecChr_writeFileAll
#define VecChr_writeFileAll_errChk a_VecChr_writeFileAll_errChk
#define getArg a_getArg
#define VecChr_iniArg a_VecChr_iniArg
#endif
a_static intptr_t a_VecChr_readFileAll(a_VecChr *w, const char *path)
{
FILE *fp = fopen(path, "rb");
if (fp == NULL) return -1;
intptr_t bufSz = 1024 * 1024, n0 = a_VecChr_N(w);
for (;;) {
a_VecChr_reserveDiff(w, bufSz);
intptr_t i = fread(w->p + a_VecChr_N(w), 1, bufSz, fp);
if (i <= 0) break;
a_VecChr_N(w) += i;
}
fclose(fp);
a_VecChr_reserve0(w);
a_VecChr_shrink(w, 1);
return a_VecChr_N(w) - n0;
}
a_static intptr_t a_VecChr_readFileAll_errChk(a_VecChr *w, const char *path)
{
if (path == NULL) a_errExit("fopen error: path=NULL");
intptr_t i = a_VecChr_readFileAll(w, path);
if (i < 0) a_errExit("fopen error: %s", path);
return i;
}
a_static intptr_t a_VecChr_eraseCr(a_VecChr *w)
{
char *p, *q, *p1;
p = q = w->p;
p1 = p + a_VecChr_N(w);
while (p < p1) {
if (*p++ != '\r')
*q++ = p[-1];
}
a_VecChr_N(w) -= p1 - q;
a_VecChr_reserve0(w);
return p1 - q;
}
a_static char *a_VecChr_gets(a_VecChr *w, const char *s, const char *s1)
{
const char *t = memchr(s, '\n', s1 - s);
if (t == NULL) t = s1 - 1;
t++;
intptr_t n = t - s;
a_VecChr_reserve(w, n + 1);
a_memcpy(w->p, s, n);
a_VecChr_N(w) = n;
w->p[a_VecChr_N(w)] = '\0'; // reserve0()相当.
return (char *) t;
}
a_static intptr_t a_VecChr_writeFileAll(a_VecChr *w, const char *path, const char *mod)
{
FILE *fp = fopen(path, mod);
if (fp == NULL) return -1;
intptr_t i = 0, j;
for (;;) {
j = fwrite(w->p + i, 1, a_VecChr_N(w) - i, fp);
if (j <= 0) break;
i += j;
}
fclose(fp);
return i;
}
a_static intptr_t a_VecChr_writeFileAll_errChk(a_VecChr *w, const char *path, const char *mod)
{
if (path == NULL) a_errExit("fopen error: path=NULL");
intptr_t i = a_VecChr_writeFileAll(w, path, mod);
if (i < 0)
a_errExit("fopen error: %s", path);
if (i < a_VecChr_N(w))
a_errExit("fwrite error: %s", path);
return i;
}
a_static const char *a_getArg(int argc, const char **argv, const char *tag, const char *val0)
{
intptr_t i, n = strlen(tag);
for (i = 1; i < argc; i++) {
if (strncmp(argv[i], tag, n) == 0)
val0 = argv[i] + n;
}
return val0;
}
a_static void a_VecChr_iniArg(_aDef_ a_VecChr *w, const char *path, int flg)
// flg=1:デフォルトをinlineモードに変更.
// 2:ファイルから読んだ場合にeraseCrする.
// 4:inlineの場合でも、convEscしない.
// 8:fileの場合に、convEscする.
// 16:最初にiniしない.
// 典型値: flg=0(file-bin), flg=2(file-txt)
// flg=1(inline-bin), flg=3(inline-txt)
// file:かinline:か。明示しなければデフォルト値が使われる.
{
if ((flg & 16) == 0)
a_VecChr_ini(_aThr_ w);
a_VecChr_N(w) = 0;
a_VecChr_puts(w, path, -1);
if (w->p[0] == 0x22) {
a_VecChr_replace(w, 0, 1, NULL, 0);
if (a_VecChr_N(w) > 0 && w->p[a_VecChr_N(w) - 1] == 0x22)
a_VecChr_N(w)--;
}
if (a_VecChr_N(w) >= 5 && memcmp(w->p, "file:", 5) == 0) {
a_VecChr_replace(w, 0, 5, NULL, 0);
flg &= ~1;
}
if (a_VecChr_N(w) >= 7 && memcmp(w->p, "inline:", 7) == 0) {
a_VecChr_replace(w, 0, 7, NULL, 0);
flg |= 1;
}
if ((flg & 1) == 0) {
a_VecChr_reserve0(w);
a_VecChr_N(w) = 0;
a_VecChr_readFileAll_errChk(w, w->p);
if ((flg & 2) != 0)
a_VecChr_eraseCr(w);
if ((flg & 8) != 0)
flg |= 256;
} else {
if ((flg & 4) == 0)
flg |= 256;
}
if ((flg & 256) != 0)
a_VecChr_convEsc(w);
}
(99) 更新履歴
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