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CSV_XS.xs
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CSV_XS.xs
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/* Copyright (c) 2007-2020 H.Merijn Brand. All rights reserved.
* Copyright (c) 1998-2001 Jochen Wiedmann. All rights reserved.
* This program is free software; you can redistribute it and/or
* modify it under the same terms as Perl itself.
*/
#define PERL_NO_GET_CONTEXT
#include <EXTERN.h>
#include <perl.h>
#include <XSUB.h>
#define DPPP_PL_parser_NO_DUMMY
#define NEED_utf8_to_uvchr_buf
#define NEED_my_snprintf
#define NEED_pv_escape
#define NEED_pv_pretty
#ifndef PERLIO_F_UTF8
# define PERLIO_F_UTF8 0x00008000
# endif
#ifndef MAXINT
# define MAXINT ((int)(~(unsigned)0 >> 1))
# endif
#include "ppport.h"
#define is_utf8_sv(s) is_utf8_string ((U8 *)SvPV_nolen (s), SvCUR (s))
#define MAINT_DEBUG 0
#define BUFFER_SIZE 1024
#define CSV_XS_TYPE_WARN 1
#define CSV_XS_TYPE_PV 0
#define CSV_XS_TYPE_IV 1
#define CSV_XS_TYPE_NV 2
/* maximum length for EOL, SEP, and QUOTE - keep in sync with .pm */
#define MAX_ATTR_LEN 16
#define CSV_FLAGS_QUO 0x0001
#define CSV_FLAGS_BIN 0x0002
#define CSV_FLAGS_EIF 0x0004
#define CSV_FLAGS_MIS 0x0010
#define HOOK_ERROR 0x0001
#define HOOK_AFTER_PARSE 0x0002
#define HOOK_BEFORE_PRINT 0x0004
#ifdef __THW_370__
#define CH_TAB '\005'
#define CH_NL '\025'
#define CH_CR '\015'
#define CH_SPACE '\100'
#define CH_DEL '\007'
#else
#define CH_TAB '\011'
#define CH_NL '\012'
#define CH_CR '\015'
#define CH_SPACE '\040'
#define CH_DEL '\177'
#endif
#define CH_EOLX 1215
#define CH_EOL *csv->eol
#define CH_SEPX 8888
#define CH_SEP *csv->sep
#define CH_QUOTEX 8889
#define CH_QUOTE *csv->quo
#define useIO_EOF 0x10
#define unless(expr) if (!(expr))
#define _is_reftype(f,x) \
(f && ((SvGMAGICAL (f) && mg_get (f)) || 1) && SvROK (f) && SvTYPE (SvRV (f)) == x)
#define _is_arrayref(f) _is_reftype (f, SVt_PVAV)
#define _is_hashref(f) _is_reftype (f, SVt_PVHV)
#define _is_coderef(f) _is_reftype (f, SVt_PVCV)
#define SvSetUndef(sv) sv_setpvn (sv, NULL, 0)
#define SvSetEmpty(sv) sv_setpvn_mg (sv, "", 0)
#define CSV_XS_SELF \
if (!self || !SvOK (self) || !SvROK (self) || \
SvTYPE (SvRV (self)) != SVt_PVHV) \
croak ("self is not a hash ref"); \
hv = (HV *)SvRV (self)
/* Keep in sync with .pm! */
#define CACHE_ID_quote_char 0
#define CACHE_ID_escape_char 1
#define CACHE_ID_sep_char 2
#define CACHE_ID_binary 3
#define CACHE_ID_keep_meta_info 4
#define CACHE_ID_always_quote 5
#define CACHE_ID_allow_loose_quotes 6
#define CACHE_ID_allow_loose_escapes 7
#define CACHE_ID_allow_unquoted_escape 8
#define CACHE_ID_allow_whitespace 9
#define CACHE_ID_blank_is_undef 10
#define CACHE_ID_sep 39
#define CACHE_ID_sep_len 38
#define CACHE_ID_eol 11
#define CACHE_ID_eol_len 12
#define CACHE_ID_eol_is_cr 13
#define CACHE_ID_quo 15
#define CACHE_ID_quo_len 16
#define CACHE_ID_verbatim 22
#define CACHE_ID_empty_is_undef 23
#define CACHE_ID_auto_diag 24
#define CACHE_ID_quote_space 25
#define CACHE_ID_quote_empty 37
#define CACHE_ID__is_bound 26
#define CACHE_ID__has_ahead 30
#define CACHE_ID_escape_null 31
#define CACHE_ID_quote_binary 32
#define CACHE_ID_diag_verbose 33
#define CACHE_ID_has_error_input 34
#define CACHE_ID_decode_utf8 35
#define CACHE_ID__has_hooks 36
#define CACHE_ID_formula 38
#define CACHE_ID_strict 42
#define CACHE_ID_undef_str 46
#define byte unsigned char
#define ulng unsigned long
typedef struct {
byte quote_char;
byte escape_char;
byte fld_idx;
byte binary;
byte keep_meta_info;
byte always_quote;
byte useIO; /* Also used to indicate EOF */
byte eol_is_cr;
byte allow_loose_quotes;
byte allow_loose_escapes;
byte allow_unquoted_escape;
byte allow_whitespace;
byte blank_is_undef;
byte empty_is_undef;
byte verbatim;
byte auto_diag;
byte quote_space;
byte escape_null;
byte quote_binary;
byte first_safe_char;
byte diag_verbose;
byte has_error_input;
byte decode_utf8;
byte has_hooks;
byte quote_empty;
byte formula;
byte strict;
short strict_n;
long is_bound;
ulng recno;
byte * cache;
SV * pself; /* PL_self, for error_diag */
HV * self;
SV * bound;
char * types;
byte eol_len;
byte sep_len;
byte quo_len;
byte types_len;
char * bptr;
SV * tmp;
byte utf8;
byte has_ahead;
byte eolx;
byte undef_flg;
byte * undef_str;
int eol_pos;
STRLEN size;
STRLEN used;
byte eol[MAX_ATTR_LEN];
byte sep[MAX_ATTR_LEN];
byte quo[MAX_ATTR_LEN];
char buffer[BUFFER_SIZE];
} csv_t;
#define bool_opt_def(o,d) \
(((svp = hv_fetchs (self, o, FALSE)) && *svp) ? SvTRUE (*svp) : d)
#define bool_opt(o) bool_opt_def (o, 0)
#define num_opt_def(o,d) \
(((svp = hv_fetchs (self, o, FALSE)) && *svp) ? SvIV (*svp) : d)
#define num_opt(o) num_opt_def (o, 0)
typedef struct {
int xs_errno;
char *xs_errstr;
} xs_error_t;
static const xs_error_t xs_errors[] = {
/* Generic errors */
{ 1000, "INI - constructor failed" },
{ 1001, "INI - sep_char is equal to quote_char or escape_char" },
{ 1002, "INI - allow_whitespace with escape_char or quote_char SP or TAB" },
{ 1003, "INI - \\r or \\n in main attr not allowed" },
{ 1004, "INI - callbacks should be undef or a hashref" },
{ 1005, "INI - EOL too long" },
{ 1006, "INI - SEP too long" },
{ 1007, "INI - QUOTE too long" },
{ 1008, "INI - SEP undefined" },
{ 1010, "INI - the header is empty" },
{ 1011, "INI - the header contains more than one valid separator" },
{ 1012, "INI - the header contains an empty field" },
{ 1013, "INI - the header contains nun-unique fields" },
{ 1014, "INI - header called on undefined stream" },
/* Syntax errors */
{ 1500, "PRM - Invalid/unsupported argument(s)" },
{ 1501, "PRM - The key attribute is passed as an unsupported type" },
{ 1502, "PRM - The value attribute is passed without the key attribute" },
{ 1503, "PRM - The value attribute is passed as an unsupported type" },
/* Parse errors */
{ 2010, "ECR - QUO char inside quotes followed by CR not part of EOL" },
{ 2011, "ECR - Characters after end of quoted field" },
{ 2012, "EOF - End of data in parsing input stream" },
{ 2013, "ESP - Specification error for fragments RFC7111" },
{ 2014, "ENF - Inconsistent number of fields" },
/* EIQ - Error Inside Quotes */
{ 2021, "EIQ - NL char inside quotes, binary off" },
{ 2022, "EIQ - CR char inside quotes, binary off" },
{ 2023, "EIQ - QUO character not allowed" },
{ 2024, "EIQ - EOF cannot be escaped, not even inside quotes" },
{ 2025, "EIQ - Loose unescaped escape" },
{ 2026, "EIQ - Binary character inside quoted field, binary off" },
{ 2027, "EIQ - Quoted field not terminated" },
/* EIF - Error Inside Field */
{ 2030, "EIF - NL char inside unquoted verbatim, binary off" },
{ 2031, "EIF - CR char is first char of field, not part of EOL" },
{ 2032, "EIF - CR char inside unquoted, not part of EOL" },
{ 2034, "EIF - Loose unescaped quote" },
{ 2035, "EIF - Escaped EOF in unquoted field" },
{ 2036, "EIF - ESC error" },
{ 2037, "EIF - Binary character in unquoted field, binary off" },
/* Combine errors */
{ 2110, "ECB - Binary character in Combine, binary off" },
/* IO errors */
{ 2200, "EIO - print to IO failed. See errno" },
/* Hash-Ref errors */
{ 3001, "EHR - Unsupported syntax for column_names ()" },
{ 3002, "EHR - getline_hr () called before column_names ()" },
{ 3003, "EHR - bind_columns () and column_names () fields count mismatch" },
{ 3004, "EHR - bind_columns () only accepts refs to scalars" },
{ 3006, "EHR - bind_columns () did not pass enough refs for parsed fields" },
{ 3007, "EHR - bind_columns needs refs to writable scalars" },
{ 3008, "EHR - unexpected error in bound fields" },
{ 3009, "EHR - print_hr () called before column_names ()" },
{ 3010, "EHR - print_hr () called with invalid arguments" },
{ 4001, "PRM - The key does not exist as field in the data" },
{ 0, "" },
};
static int last_error = 0;
static SV *m_getline, *m_print;
#define is_EOL(c) (c == CH_EOLX)
#define __is_SEPX(c) (c == CH_SEP && (csv->sep_len == 0 || (\
csv->size - csv->used >= (STRLEN)csv->sep_len - 1 &&\
!memcmp (csv->bptr + csv->used, csv->sep + 1, csv->sep_len - 1) &&\
(csv->used += csv->sep_len - 1) &&\
(c = CH_SEPX))))
#if MAINT_DEBUG > 1
static byte _is_SEPX (unsigned int *c, csv_t *csv, int line) {
unsigned int b = __is_SEPX (*c);
(void)fprintf (stderr, "# %4d - is_SEPX:\t%d (%d)\n", line, b, csv->sep_len);
if (csv->sep_len)
(void)fprintf (stderr,
"# len: %d, siz: %d, usd: %d, c: %03x, *sep: %03x\n",
csv->sep_len, csv->size, csv->used, *c, CH_SEP);
return b;
} /* _is_SEPX */
#define is_SEP(c) _is_SEPX (&c, csv, __LINE__)
#else
#define is_SEP(c) __is_SEPX (c)
#endif
#define __is_QUOTEX(c) (CH_QUOTE && c == CH_QUOTE && (csv->quo_len == 0 || (\
csv->size - csv->used >= (STRLEN)csv->quo_len - 1 &&\
!memcmp (csv->bptr + csv->used, csv->quo + 1, csv->quo_len - 1) &&\
(csv->used += csv->quo_len - 1) &&\
(c = CH_QUOTEX))))
#if MAINT_DEBUG > 1
static byte _is_QUOTEX (unsigned int *c, csv_t *csv, int line) {
unsigned int b = __is_QUOTEX (*c);
(void)fprintf (stderr, "# %4d - is_QUOTEX:\t%d (%d)\n", line, b, csv->quo_len);
if (csv->quo_len)
(void)fprintf (stderr,
"# len: %d, siz: %d, usd: %d, c: %03x, *quo: %03x\n",
csv->quo_len, csv->size, csv->used, *c, CH_QUOTE);
return b;
} /* _is_QUOTEX */
#define is_QUOTE(c) _is_QUOTEX (&c, csv, __LINE__)
#else
#define is_QUOTE(c) __is_QUOTEX (c)
#endif
#define is_whitespace(ch) \
( (ch) != CH_SEP && \
(ch) != CH_QUOTE && \
(ch) != csv->escape_char && \
( (ch) == CH_SPACE || \
(ch) == CH_TAB \
) \
)
#define SvDiag(xse) cx_SvDiag (aTHX_ xse)
static SV *cx_SvDiag (pTHX_ int xse) {
int i = 0;
SV *err;
while (xs_errors[i].xs_errno && xs_errors[i].xs_errno != xse) i++;
if ((err = newSVpv (xs_errors[i].xs_errstr, 0))) {
(void)SvUPGRADE (err, SVt_PVIV);
SvIV_set (err, xse);
SvIOK_on (err);
}
return (err);
} /* SvDiag */
/* This function should be altered to deal with the optional extra argument
* that holds the replacement message */
#define SetDiag(csv,xse) cx_SetDiag (aTHX_ csv, xse)
static SV *cx_SetDiag (pTHX_ csv_t *csv, int xse) {
dSP;
SV *err = SvDiag (xse);
SV *pself = csv->pself;
last_error = xse;
(void)hv_store (csv->self, "_ERROR_DIAG", 11, err, 0);
if (xse == 0) {
(void)hv_store (csv->self, "_ERROR_POS", 10, newSViv (0), 0);
(void)hv_store (csv->self, "_ERROR_FLD", 10, newSViv (0), 0);
(void)hv_store (csv->self, "_ERROR_INPUT", 12, &PL_sv_undef, 0);
csv->has_error_input = 0;
}
if (xse == 2012) /* EOF */
(void)hv_store (csv->self, "_EOF", 4, &PL_sv_yes, 0);
if (csv->auto_diag) {
unless (_is_hashref (pself))
pself = newRV_inc ((SV *)csv->self);
ENTER;
PUSHMARK (SP);
XPUSHs (pself);
PUTBACK;
call_pv ("Text::CSV_XS::error_diag", G_VOID | G_DISCARD);
LEAVE;
unless (pself == csv->pself)
sv_free (pself);
}
return (err);
} /* SetDiag */
#define xs_cache_set(hv,idx,val) cx_xs_cache_set (aTHX_ hv, idx, val)
static void cx_xs_cache_set (pTHX_ HV *hv, int idx, SV *val) {
SV **svp;
byte *cache;
csv_t csvs;
csv_t *csv = &csvs;
IV iv;
byte bv;
char *cp = "\0";
STRLEN len = 0;
unless ((svp = hv_fetchs (hv, "_CACHE", FALSE)) && *svp)
return;
cache = (byte *)SvPV_nolen (*svp);
(void)memcpy (csv, cache, sizeof (csv_t));
if (SvPOK (val))
cp = SvPV (val, len);
if (SvIOK (val))
iv = SvIV (val);
else if (SvNOK (val)) /* Needed for 5.6.x but safe for 5.8.x+ */
iv = (IV)SvNV (val); /* uncoverable statement ancient perl required */
else
iv = *cp;
bv = (unsigned)iv & 0xff;
switch (idx) {
/* single char/byte */
case CACHE_ID_sep_char:
CH_SEP = *cp;
csv->sep_len = 0;
break;
case CACHE_ID_quote_char:
CH_QUOTE = *cp;
csv->quo_len = 0;
break;
case CACHE_ID_escape_char: csv->escape_char = *cp; break;
/* boolean/numeric */
case CACHE_ID_binary: csv->binary = bv; break;
case CACHE_ID_keep_meta_info: csv->keep_meta_info = bv; break;
case CACHE_ID_always_quote: csv->always_quote = bv; break;
case CACHE_ID_quote_empty: csv->quote_empty = bv; break;
case CACHE_ID_quote_space: csv->quote_space = bv; break;
case CACHE_ID_escape_null: csv->escape_null = bv; break;
case CACHE_ID_quote_binary: csv->quote_binary = bv; break;
case CACHE_ID_decode_utf8: csv->decode_utf8 = bv; break;
case CACHE_ID_allow_loose_escapes: csv->allow_loose_escapes = bv; break;
case CACHE_ID_allow_loose_quotes: csv->allow_loose_quotes = bv; break;
case CACHE_ID_allow_unquoted_escape: csv->allow_unquoted_escape = bv; break;
case CACHE_ID_allow_whitespace: csv->allow_whitespace = bv; break;
case CACHE_ID_blank_is_undef: csv->blank_is_undef = bv; break;
case CACHE_ID_empty_is_undef: csv->empty_is_undef = bv; break;
case CACHE_ID_formula: csv->formula = bv; break;
case CACHE_ID_strict: csv->strict = bv; break;
case CACHE_ID_verbatim: csv->verbatim = bv; break;
case CACHE_ID_auto_diag: csv->auto_diag = bv; break;
case CACHE_ID_diag_verbose: csv->diag_verbose = bv; break;
case CACHE_ID__has_ahead: csv->has_ahead = bv; break;
case CACHE_ID__has_hooks: csv->has_hooks = bv; break;
case CACHE_ID_has_error_input: csv->has_error_input = bv; break;
/* a 4-byte IV */
case CACHE_ID__is_bound: csv->is_bound = iv; break;
/* string */
case CACHE_ID_sep:
(void)memcpy (csv->sep, cp, len);
csv->sep_len = len == 1 ? 0 : len;
break;
case CACHE_ID_quo:
(void)memcpy (csv->quo, cp, len);
csv->quo_len = len == 1 ? 0 : len;
break;
case CACHE_ID_eol:
(void)memcpy (csv->eol, cp, len);
csv->eol_len = len;
csv->eol_is_cr = len == 1 && *cp == CH_CR ? 1 : 0;
break;
case CACHE_ID_undef_str:
if (*cp) {
csv->undef_str = (byte *)cp;
if (SvUTF8 (val))
csv->undef_flg = 3;
}
else {
csv->undef_str = NULL;
csv->undef_flg = 0;
}
break;
default:
warn ("Unknown cache index %d ignored\n", idx);
}
csv->cache = cache;
(void)memcpy (cache, csv, sizeof (csv_t));
} /* cache_set */
#define _pretty_str(csv,xse) cx_pretty_str (aTHX_ csv, xse)
static char *cx_pretty_str (pTHX_ byte *s, STRLEN l) {
SV *dsv = sv_2mortal (newSVpvs (""));
return (pv_pretty (dsv, (char *)s, l, 0, NULL, NULL,
(PERL_PV_PRETTY_DUMP | PERL_PV_ESCAPE_UNI_DETECT)));
} /* _pretty_str */
#define _cache_show_byte(trim,c) \
warn (" %-21s %02x:%3d\n", trim, c, c)
#define _cache_show_char(trim,c) \
warn (" %-21s %02x:%s\n", trim, c, _pretty_str (&c, 1))
#define _cache_show_str(trim,l,str) \
warn (" %-21s %02d:%s\n", trim, l, _pretty_str (str, l))
#define xs_cache_diag(hv) cx_xs_cache_diag (aTHX_ hv)
static void cx_xs_cache_diag (pTHX_ HV *hv) {
SV **svp;
byte *cache;
csv_t csvs;
csv_t *csv = &csvs;
unless ((svp = hv_fetchs (hv, "_CACHE", FALSE)) && *svp) {
warn ("CACHE: invalid\n");
return;
}
cache = (byte *)SvPV_nolen (*svp);
(void)memcpy (csv, cache, sizeof (csv_t));
warn ("CACHE:\n");
_cache_show_char ("quote_char", CH_QUOTE);
_cache_show_char ("escape_char", csv->escape_char);
_cache_show_char ("sep_char", CH_SEP);
_cache_show_byte ("binary", csv->binary);
_cache_show_byte ("decode_utf8", csv->decode_utf8);
_cache_show_byte ("allow_loose_escapes", csv->allow_loose_escapes);
_cache_show_byte ("allow_loose_quotes", csv->allow_loose_quotes);
_cache_show_byte ("allow_unquoted_escape", csv->allow_unquoted_escape);
_cache_show_byte ("allow_whitespace", csv->allow_whitespace);
_cache_show_byte ("always_quote", csv->always_quote);
_cache_show_byte ("quote_empty", csv->quote_empty);
_cache_show_byte ("quote_space", csv->quote_space);
_cache_show_byte ("escape_null", csv->escape_null);
_cache_show_byte ("quote_binary", csv->quote_binary);
_cache_show_byte ("auto_diag", csv->auto_diag);
_cache_show_byte ("diag_verbose", csv->diag_verbose);
_cache_show_byte ("formula", csv->formula);
_cache_show_byte ("strict", csv->strict);
_cache_show_byte ("has_error_input", csv->has_error_input);
_cache_show_byte ("blank_is_undef", csv->blank_is_undef);
_cache_show_byte ("empty_is_undef", csv->empty_is_undef);
_cache_show_byte ("has_ahead", csv->has_ahead);
_cache_show_byte ("keep_meta_info", csv->keep_meta_info);
_cache_show_byte ("verbatim", csv->verbatim);
_cache_show_byte ("has_hooks", csv->has_hooks);
_cache_show_byte ("eol_is_cr", csv->eol_is_cr);
_cache_show_byte ("eol_len", csv->eol_len);
_cache_show_str ("eol", csv->eol_len, csv->eol);
_cache_show_byte ("sep_len", csv->sep_len);
if (csv->sep_len > 1)
_cache_show_str ("sep", csv->sep_len, csv->sep);
_cache_show_byte ("quo_len", csv->quo_len);
if (csv->quo_len > 1)
_cache_show_str ("quote", csv->quo_len, csv->quo);
if (csv->bptr)
_cache_show_str ("bptr", (int)strlen (csv->bptr), csv->bptr);
if (csv->tmp && SvPOK (csv->tmp)) {
char *s = SvPV_nolen (csv->tmp);
_cache_show_str ("tmp", (int)strlen (s), s);
}
} /* xs_cache_diag */
#define set_eol_is_cr(csv) cx_set_eol_is_cr (aTHX_ csv)
static void cx_set_eol_is_cr (pTHX_ csv_t *csv) {
csv->eol[0] = CH_CR;
csv->eol_is_cr = 1;
csv->eol_len = 1;
(void)memcpy (csv->cache, csv, sizeof (csv_t));
(void)hv_store (csv->self, "eol", 3, newSVpvn ((char *)csv->eol, 1), 0);
} /* set_eol_is_cr */
#define SetupCsv(csv,self,pself) cx_SetupCsv (aTHX_ csv, self, pself)
static void cx_SetupCsv (pTHX_ csv_t *csv, HV *self, SV *pself) {
SV **svp;
STRLEN len;
char *ptr;
last_error = 0;
if ((svp = hv_fetchs (self, "_CACHE", FALSE)) && *svp) {
byte *cache = (byte *)SvPVX (*svp);
(void)memcpy (csv, cache, sizeof (csv_t));
}
else {
SV *sv_cache;
(void)memset (csv, 0, sizeof (csv_t)); /* Reset everything */
csv->self = self;
csv->pself = pself;
CH_SEP = ',';
if ((svp = hv_fetchs (self, "sep_char", FALSE)) && *svp && SvOK (*svp))
CH_SEP = *SvPV (*svp, len);
if ((svp = hv_fetchs (self, "sep", FALSE)) && *svp && SvOK (*svp)) {
ptr = SvPV (*svp, len);
(void)memcpy (csv->sep, ptr, len);
if (len > 1)
csv->sep_len = len;
}
CH_QUOTE = '"';
if ((svp = hv_fetchs (self, "quote_char", FALSE)) && *svp) {
if (SvOK (*svp)) {
ptr = SvPV (*svp, len);
CH_QUOTE = len ? *ptr : (char)0;
}
else
CH_QUOTE = (char)0;
}
if ((svp = hv_fetchs (self, "quote", FALSE)) && *svp && SvOK (*svp)) {
ptr = SvPV (*svp, len);
(void)memcpy (csv->quo, ptr, len);
if (len > 1)
csv->quo_len = len;
}
csv->escape_char = '"';
if ((svp = hv_fetchs (self, "escape_char", FALSE)) && *svp) {
if (SvOK (*svp)) {
ptr = SvPV (*svp, len);
csv->escape_char = len ? *ptr : (char)0;
}
else
csv->escape_char = (char)0;
}
if ((svp = hv_fetchs (self, "eol", FALSE)) && *svp && SvOK (*svp)) {
char *eol = SvPV (*svp, len);
(void)memcpy (csv->eol, eol, len);
csv->eol_len = len;
if (len == 1 && *csv->eol == CH_CR)
csv->eol_is_cr = 1;
}
csv->undef_flg = 0;
if ((svp = hv_fetchs (self, "undef_str", FALSE)) && *svp && SvOK (*svp)) {
/*if (sv && (SvOK (sv) || (
(SvGMAGICAL (sv) && (mg_get (sv), 1) && SvOK (sv))))) {*/
csv->undef_str = (byte *)SvPV_nolen (*svp);
if (SvUTF8 (*svp))
csv->undef_flg = 3;
}
else
csv->undef_str = NULL;
if ((svp = hv_fetchs (self, "_types", FALSE)) && *svp && SvOK (*svp)) {
csv->types = SvPV (*svp, len);
csv->types_len = len;
}
if ((svp = hv_fetchs (self, "_is_bound", FALSE)) && *svp && SvOK (*svp))
csv->is_bound = SvIV (*svp);
if ((svp = hv_fetchs (self, "callbacks", FALSE)) && _is_hashref (*svp)) {
HV *cb = (HV *)SvRV (*svp);
if ((svp = hv_fetchs (cb, "after_parse", FALSE)) && _is_coderef (*svp))
csv->has_hooks |= HOOK_AFTER_PARSE;
if ((svp = hv_fetchs (cb, "before_print", FALSE)) && _is_coderef (*svp))
csv->has_hooks |= HOOK_BEFORE_PRINT;
}
csv->binary = bool_opt ("binary");
csv->decode_utf8 = bool_opt ("decode_utf8");
csv->always_quote = bool_opt ("always_quote");
csv->strict = bool_opt ("strict");
csv->quote_empty = bool_opt ("quote_empty");
csv->quote_space = bool_opt_def ("quote_space", 1);
csv->escape_null = bool_opt_def ("escape_null", 1);
csv->quote_binary = bool_opt_def ("quote_binary", 1);
csv->allow_loose_quotes = bool_opt ("allow_loose_quotes");
csv->allow_loose_escapes = bool_opt ("allow_loose_escapes");
csv->allow_unquoted_escape = bool_opt ("allow_unquoted_escape");
csv->allow_whitespace = bool_opt ("allow_whitespace");
csv->blank_is_undef = bool_opt ("blank_is_undef");
csv->empty_is_undef = bool_opt ("empty_is_undef");
csv->verbatim = bool_opt ("verbatim");
csv->auto_diag = num_opt ("auto_diag");
csv->diag_verbose = num_opt ("diag_verbose");
csv->keep_meta_info = num_opt ("keep_meta_info");
csv->formula = num_opt ("formula");
unless (csv->escape_char) csv->escape_null = 0;
sv_cache = newSVpvn ((char *)csv, sizeof (csv_t));
csv->cache = (byte *)SvPVX (sv_cache);
SvREADONLY_on (sv_cache);
(void)memcpy (csv->cache, csv, sizeof (csv_t));
(void)hv_store (self, "_CACHE", 6, sv_cache, 0);
}
csv->utf8 = 0;
csv->size = 0;
csv->used = 0;
csv->first_safe_char = csv->quote_space ? 0x21 : 0x20;
if (csv->is_bound) {
if ((svp = hv_fetchs (self, "_BOUND_COLUMNS", FALSE)) && _is_arrayref (*svp))
csv->bound = *svp;
else
csv->is_bound = 0;
}
csv->eol_pos = -1;
csv->eolx = csv->eol_len
? csv->verbatim || csv->eol_len >= 2
? 1
: csv->eol[0] == CH_CR || csv->eol[0] == CH_NL
? 0
: 1
: 0;
if (csv->sep_len > 1 && is_utf8_string ((U8 *)(csv->sep), csv->sep_len))
csv->utf8 = 1;
if (csv->quo_len > 1 && is_utf8_string ((U8 *)(csv->quo), csv->quo_len))
csv->utf8 = 1;
} /* SetupCsv */
#define Print(csv,dst) cx_Print (aTHX_ csv, dst)
static int cx_Print (pTHX_ csv_t *csv, SV *dst) {
int result;
int keep = 0;
if (csv->useIO) {
SV *tmp = sv_2mortal (newSVpvn (csv->buffer, csv->used));
dSP;
PUSHMARK (sp);
EXTEND (sp, 2);
PUSHs ((dst));
if (csv->utf8) {
STRLEN len;
char *ptr;
int j;
ptr = SvPV (tmp, len);
while (len > 0 && !is_utf8_sv (tmp) && keep < 16) {
ptr[--len] = (char)0;
SvCUR_set (tmp, len);
keep++;
}
for (j = 0; j < keep; j++)
csv->buffer[j] = csv->buffer[csv->used - keep + j];
SvUTF8_on (tmp);
}
PUSHs (tmp);
PUTBACK;
result = call_sv (m_print, G_METHOD);
SPAGAIN;
if (result) {
result = POPi;
unless (result)
(void)SetDiag (csv, 2200);
}
PUTBACK;
}
else {
sv_catpvn (SvRV (dst), csv->buffer, csv->used);
result = TRUE;
}
if (csv->utf8 && !csv->useIO && csv->decode_utf8
&& SvROK (dst) && is_utf8_sv (SvRV (dst)))
SvUTF8_on (SvRV (dst));
csv->used = keep;
return result;
} /* Print */
#define CSV_PUT(csv,dst,c) { \
if ((csv)->used == sizeof ((csv)->buffer) - 1) { \
unless (Print ((csv), (dst))) \
return FALSE; \
} \
(csv)->buffer[(csv)->used++] = (c); \
}
#define bound_field(csv,i,keep) cx_bound_field (aTHX_ csv, i, keep)
static SV *cx_bound_field (pTHX_ csv_t *csv, SSize_t i, int keep) {
SV *sv = csv->bound;
AV *av;
/* fprintf (stderr, "# New bind %d/%d\n", i, csv->is_bound);\ */
if (i >= csv->is_bound) {
(void)SetDiag (csv, 3006);
return (NULL);
}
if (sv && SvROK (sv)) {
av = (AV *)(SvRV (sv));
/* fprintf (stderr, "# Bind %d/%d/%d\n", i, csv->is_bound, av_len (av)); */
sv = *av_fetch (av, i, FALSE);
if (sv && SvROK (sv)) {
sv = SvRV (sv);
if (keep)
return (sv);
unless (SvREADONLY (sv)) {
SvSetEmpty (sv);
return (sv);
}
}
}
(void)SetDiag (csv, 3008);
return (NULL);
} /* bound_field */
#define was_quoted(mf,idx) cx_was_quoted (aTHX_ mf, idx)
static int cx_was_quoted (pTHX_ AV *mf, int idx) {
SV **x = av_fetch (mf, idx, FALSE);
return (x && SvIOK (*x) && SvIV (*x) & CSV_FLAGS_QUO ? 1 : 0);
} /* was_quoted */
/* Should be extended for EBCDIC ? */
#define is_csv_binary(ch) ((ch < CH_SPACE || ch >= CH_DEL) && ch != CH_TAB)
#define _formula(csv,sv,len,f) cx_formula (aTHX_ csv, sv, len, f)
static char *cx_formula (pTHX_ csv_t *csv, SV *sv, STRLEN *len, int f) {
int fa = csv->formula;
if (fa == 1) die ("Formulas are forbidden\n");
if (fa == 2) croak ("Formulas are forbidden\n");
if (fa == 3) {
char *ptr = SvPV_nolen (sv);
char rec[40];
char field[128];
SV **svp;
if (csv->recno) (void)sprintf (rec, " in record %lu", csv->recno + 1);
else *rec = (char)0;
*field = (char)0;
if ((svp = hv_fetchs (csv->self, "_COLUMN_NAMES", FALSE)) && _is_arrayref (*svp)) {
AV *avp = (AV *)SvRV (*svp);
if (avp && av_len (avp) >= (f - 1)) {
SV **fnm = av_fetch (avp, f - 1, FALSE);
if (fnm && *fnm && SvOK (*fnm))
(void)sprintf (field, " (column: '%.100s')", SvPV_nolen (*fnm));
}
}
warn ("Field %d%s%s contains formula '%s'\n", f, field, rec, ptr);
return ptr;
}
if (len) *len = 0;
if (fa == 4) {
unless (SvREADONLY (sv)) SvSetEmpty (sv);
return "";
}
if (fa == 5) {
unless (SvREADONLY (sv)) SvSetUndef (sv);
return NULL;
}
if (fa == 6) {
int result;
SV **svp = hv_fetchs (csv->self, "_FORMULA_CB", FALSE);
if (svp && _is_coderef (*svp)) {
dSP;
ENTER;
SAVE_DEFSV; /* local $_ */
DEFSV = sv;
PUSHMARK (SP);
PUTBACK;
result = call_sv (*svp, G_SCALAR);
SPAGAIN;
if (result)
sv_setsv (sv, POPs);
PUTBACK;
LEAVE;
}
return len ? SvPV (sv, *len) : SvPV_nolen (sv);
}
/* So far undefined behavior */
return NULL;
} /* _formula */
#define Combine(csv,dst,fields) cx_Combine (aTHX_ csv, dst, fields)
static int cx_Combine (pTHX_ csv_t *csv, SV *dst, AV *fields) {
SSize_t i, n;
int bound = 0;
int aq = (int)csv->always_quote;
int qe = (int)csv->quote_empty;
int kmi = (int)csv->keep_meta_info;
AV *qm = NULL;
n = (IV)av_len (fields);
if (n < 0 && csv->is_bound) {
n = csv->is_bound - 1;
bound = 1;
}
if (kmi >= 10) {
SV **svp;
if ((svp = hv_fetchs (csv->self, "_FFLAGS", FALSE)) && _is_arrayref (*svp)) {
AV *avp = (AV *)SvRV (*svp);
if (avp && av_len (avp) >= n)
qm = avp;
}
}
for (i = 0; i <= n; i++) {
SV *sv;
STRLEN len = 0;
char *ptr = NULL;
if (i > 0) {
CSV_PUT (csv, dst, CH_SEP);
if (csv->sep_len) {
int x;
for (x = 1; x < (int)csv->sep_len; x++)
CSV_PUT (csv, dst, csv->sep[x]);
}
}
if (bound)
sv = bound_field (csv, i, 1);
else {
SV **svp = av_fetch (fields, i, FALSE);
sv = svp && *svp ? *svp : NULL;
}
if (sv && (SvOK (sv) || (
(SvGMAGICAL (sv) && (mg_get (sv), 1) && SvOK (sv))))) {
int quoteMe;
ptr = SvPV (sv, len);
if (*ptr == '=' && csv->formula) {
unless (ptr = _formula (csv, sv, &len, i))
continue;
}
if (len == 0)
quoteMe = aq ? 1 : qe ? 1 : qm ? was_quoted (qm, i) : 0;
else {
if (SvUTF8 (sv)) {
csv->utf8 = 1;
csv->binary = 1;
}
quoteMe = aq ? 1 : qm ? was_quoted (qm, i) : 0;
/* Do we need quoting? We do quote, if the user requested
* (always_quote), if binary or blank characters are found
* and if the string contains quote or escape characters.
*/
if (!quoteMe &&
( quoteMe = (!SvIOK (sv) && !SvNOK (sv) && CH_QUOTE))) {
char *ptr2;
STRLEN l;
for (ptr2 = ptr, l = len; l; ++ptr2, --l) {
byte c = *ptr2;
if ((CH_QUOTE && c == CH_QUOTE) ||
(CH_SEP && c == CH_SEP) ||
(csv->escape_char && c == csv->escape_char) ||
(csv->quote_binary ? (c >= 0x7f && c <= 0xa0) ||
c < csv->first_safe_char
: c == CH_NL || c == CH_CR ||
(csv->quote_space && (
c == CH_SPACE || c == CH_TAB)))) {
/* Binary character */
break;
}
}
quoteMe = (l > 0);
}
}
if (quoteMe) {
CSV_PUT (csv, dst, CH_QUOTE);
if (csv->quo_len) {
int x;
for (x = 1; x < (int)csv->quo_len; x++)
CSV_PUT (csv, dst, csv->quo[x]);
}
}
while (len-- > 0) {
char c = *ptr++;
int e = 0;
if (!csv->binary && is_csv_binary (c)) {
SvREFCNT_inc (sv);
csv->has_error_input = 1;
unless (hv_store (csv->self, "_ERROR_INPUT", 12, sv, 0))
SvREFCNT_dec (sv); /* uncoverable statement memory fail */
(void)SetDiag (csv, 2110);
return FALSE;
}
if (CH_QUOTE && (byte)c == CH_QUOTE && (csv->quo_len == 0 ||
memcmp (ptr, csv->quo +1, csv->quo_len - 1) == 0))
e = 1;
else
if (c == csv->escape_char && csv->escape_char)
e = 1;
else
if (c == (char)0 && csv->escape_null) {