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migrated index_or_rindex() to fnc.c and exported some functions to shared by index(), str::index(), str::rindex()

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This commit is contained in:
hyung-hwan 2014-05-28 08:40:51 +00:00
parent 9ec0981157
commit 7774a8a8fe
3 changed files with 96 additions and 92 deletions
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94
qse/lib/awk/fnc.c
View File

@ -22,7 +22,6 @@
static int fnc_close (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi);
static int fnc_fflush (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi);
static int fnc_index (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi);
static int fnc_sin (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi);
static int fnc_cos (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi);
@ -57,7 +56,7 @@ static qse_awk_fnc_t sysfnctab[] =
{ {QSE_T("fflush"), 6}, 0, { {0, 1, QSE_NULL}, fnc_fflush, QSE_AWK_RIO }, QSE_NULL},
/* string functions */
{ {QSE_T("index"), 5}, 0, { {2, 3, QSE_NULL}, fnc_index, 0 }, QSE_NULL},
{ {QSE_T("index"), 5}, 0, { {2, 3, QSE_NULL}, qse_awk_fnc_index, 0 }, QSE_NULL},
{ {QSE_T("substr"), 6}, 0, { {2, 3, QSE_NULL}, qse_awk_fnc_substr, 0 }, QSE_NULL},
{ {QSE_T("length"), 6}, 1, { {0, 1, QSE_NULL}, qse_awk_fnc_length, 0 }, QSE_NULL},
{ {QSE_T("split"), 5}, 0, { {2, 3, QSE_T("vrx")}, qse_awk_fnc_split, 0 }, QSE_NULL},
@ -405,8 +404,90 @@ static int fnc_fflush (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
return 0;
}
static int fnc_index (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
static int index_or_rindex (qse_awk_rtx_t* rtx, int rindex)
{
/* this is similar to the built-in index() function but doesn't
* care about IGNORECASE. */
qse_size_t nargs;
qse_awk_val_t* a0, * a1;
qse_char_t* str0, * str1, * ptr;
qse_size_t len0, len1;
qse_awk_int_t idx, boundary = 1;
nargs = qse_awk_rtx_getnargs (rtx);
a0 = qse_awk_rtx_getarg (rtx, 0);
a1 = qse_awk_rtx_getarg (rtx, 1);
/*
index ("abc", "d", 3);
rindex ("abcdefabcdx", "cd", 8);
*/
if (nargs >= 3)
{
qse_awk_val_t* a2;
int n;
a2 = qse_awk_rtx_getarg (rtx, 2);
n = qse_awk_rtx_valtoint (rtx, a2, &boundary);
if (n <= -1) return -1;
}
str0 = qse_awk_rtx_getvalstr (rtx, a0, &len0);
if (str0 == QSE_NULL) return -1;
str1 = qse_awk_rtx_getvalstr (rtx, a1, &len1);
if (str1 == QSE_NULL)
{
if (a0->type != QSE_AWK_VAL_STR)
qse_awk_rtx_freevalstr (rtx, a0, str0);
return -1;
}
if (nargs < 3)
{
boundary = rindex? len0: 1;
}
else
{
if (boundary == 0) boundary = 1;
else if (boundary < 0) boundary = len0 + boundary + 1;
}
if (boundary > len0 || boundary <= 0)
{
ptr = QSE_NULL;
}
else if (rindex)
{
/* 'boundary' acts as an end position */
ptr = rtx->gbl.ignorecase?
qse_strxnrcasestr (&str0[0], boundary, str1, len1):
qse_strxnrstr (&str0[0], boundary, str1, len1);
}
else
{
/* 'boundary' acts as an start position */
ptr = rtx->gbl.ignorecase?
qse_strxncasestr (&str0[boundary-1], len0-boundary+1, str1, len1):
qse_strxnstr (&str0[boundary-1], len0-boundary+1, str1, len1);
}
idx = (ptr == QSE_NULL)? 0: ((qse_awk_int_t)(ptr-str0) + 1);
qse_awk_rtx_freevalstr (rtx, a1, str1);
qse_awk_rtx_freevalstr (rtx, a0, str0);
a0 = qse_awk_rtx_makeintval (rtx, idx);
if (a0 == QSE_NULL) return -1;
qse_awk_rtx_setretval (rtx, a0);
return 0;
}
int qse_awk_fnc_index (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
{
/*
qse_size_t nargs;
qse_awk_val_t* a0, * a1, * v;
qse_char_t* str0, * str1, * ptr;
@ -457,6 +538,13 @@ static int fnc_index (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
qse_awk_rtx_setretval (rtx, v);
return 0;
*/
return index_or_rindex (rtx, 0);
}
int qse_awk_fnc_rindex (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
{
return index_or_rindex (rtx, 1);
}
int qse_awk_fnc_length (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)

2
qse/lib/awk/fnc.h
View File

@ -42,6 +42,8 @@ extern "C" {
qse_awk_fnc_t* qse_awk_findfnc (qse_awk_t* awk, const qse_cstr_t* name);
int qse_awk_fnc_index (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi);
int qse_awk_fnc_rindex (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi);
int qse_awk_fnc_length (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi);
int qse_awk_fnc_substr (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi);
int qse_awk_fnc_split (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi);

92
qse/lib/awk/mod-str.c
View File

@ -80,91 +80,7 @@ static int fnc_ltrim (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
static int fnc_rtrim (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
{
return trim (rtx, QSE_STRTRMX_RIGHT);
}
static int index_or_rindex (qse_awk_rtx_t* rtx, int rindex)
{
/* this is similar to the built-in index() function but doesn't
* care about IGNORECASE. */
qse_size_t nargs;
qse_awk_val_t* a0, * a1;
qse_char_t* str0, * str1, * ptr;
qse_size_t len0, len1;
qse_awk_int_t idx, boundary = 1;
nargs = qse_awk_rtx_getnargs (rtx);
a0 = qse_awk_rtx_getarg (rtx, 0);
a1 = qse_awk_rtx_getarg (rtx, 1);
/*
str::index ("abc", "d", 3);
str::rindex ("abcdefabcdx", "cd", 8);
*/
if (nargs >= 3)
{
qse_awk_val_t* a2;
int n;
a2 = qse_awk_rtx_getarg (rtx, 2);
n = qse_awk_rtx_valtoint (rtx, a2, &boundary);
if (n <= -1) return -1;
}
str0 = qse_awk_rtx_getvalstr (rtx, a0, &len0);
if (str0 == QSE_NULL) return -1;
str1 = qse_awk_rtx_getvalstr (rtx, a1, &len1);
if (str1 == QSE_NULL)
{
if (a0->type != QSE_AWK_VAL_STR)
qse_awk_rtx_freevalstr (rtx, a0, str0);
return -1;
}
if (nargs < 3)
{
boundary = rindex? len0: 1;
}
else
{
if (boundary == 0) boundary = 1;
else if (boundary < 0) boundary = len0 + boundary + 1;
}
if (rindex)
{
/* 'boundary' acts as an end position */
ptr = (boundary > len0 || boundary <= 0)?
QSE_NULL: qse_strxnrstr (&str0[0], boundary, str1, len1);
}
else
{
/* 'boundary' acts as a start position */
ptr = (boundary > len0 || boundary <= 0)?
QSE_NULL: qse_strxnstr (&str0[boundary-1], len0-boundary+1, str1, len1);
}
idx = (ptr == QSE_NULL)? 0: ((qse_awk_int_t)(ptr-str0) + 1);
qse_awk_rtx_freevalstr (rtx, a1, str1);
qse_awk_rtx_freevalstr (rtx, a0, str0);
a0 = qse_awk_rtx_makeintval (rtx, idx);
if (a0 == QSE_NULL) return -1;
qse_awk_rtx_setretval (rtx, a0);
return 0;
}
static int fnc_index (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
{
return index_or_rindex (rtx, 0);
}
static int fnc_rindex (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
{
return index_or_rindex (rtx, 1);
}
}
static int is_class (qse_awk_rtx_t* rtx, qse_ctype_t ctype)
{
@ -294,8 +210,6 @@ struct fnctab_t
qse_awk_mod_sym_fnc_t info;
};
/* TODO: match. let str::match() change str::RLENGTH and str::RSTART */
/* TODO: index. reuse fnc_index() in fnc.c */
#define A_MAX QSE_TYPE_MAX(int)
@ -303,7 +217,7 @@ static fnctab_t fnctab[] =
{
/* keep this table sorted for binary search in query(). */
{ QSE_T("gsub"), { { 2, 3, QSE_T("xvr")}, qse_awk_fnc_gsub, 0 } },
{ QSE_T("index"), { { 2, 3, QSE_NULL }, fnc_index, 0 } },
{ QSE_T("index"), { { 2, 3, QSE_NULL }, qse_awk_fnc_index, 0 } },
{ QSE_T("isalnum"), { { 1, 1, QSE_NULL }, fnc_isalnum, 0 } },
{ QSE_T("isalpha"), { { 1, 1, QSE_NULL }, fnc_isalpha, 0 } },
{ QSE_T("isblank"), { { 1, 1, QSE_NULL }, fnc_isblank, 0 } },
@ -321,7 +235,7 @@ static fnctab_t fnctab[] =
{ QSE_T("match"), { { 2, 3, QSE_T("vxv") }, qse_awk_fnc_match, 0 } },
{ QSE_T("normspace"), { { 1, 1, QSE_NULL }, fnc_normspace, 0 } },
{ QSE_T("printf"), { { 1, A_MAX, QSE_NULL }, qse_awk_fnc_sprintf, 0 } },
{ QSE_T("rindex"), { { 2, 3, QSE_NULL }, fnc_rindex, 0 } },
{ QSE_T("rindex"), { { 2, 3, QSE_NULL }, qse_awk_fnc_rindex, 0 } },
{ QSE_T("rtrim"), { { 1, 1, QSE_NULL }, fnc_rtrim, 0 } },
{ QSE_T("split"), { { 2, 3, QSE_T("vrx") }, qse_awk_fnc_split, 0 } },
{ QSE_T("sub"), { { 2, 3, QSE_T("xvr") }, qse_awk_fnc_sub, 0 } },