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added #include handling

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This commit is contained in:
hyunghwan.chung 2015-05-20 14:27:47 +00:00
parent e2b32aafb9
commit 364fe63ac3
4 changed files with 163 additions and 137 deletions
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276
stix/lib/comp.c
View File

@ -124,7 +124,7 @@ static STIX_INLINE int is_alnumchar (stix_uci_t c)
static STIX_INLINE int is_binselchar (stix_uci_t c) static STIX_INLINE int is_binselchar (stix_uci_t c)
{ {
/* /*
* binarySelectorCharacter ::= * binary-selector-character :=
* '!' | '%' | '&' | '*' | '+' | ',' | * '!' | '%' | '&' | '*' | '+' | ',' |
* '/' | '<' | '>' | '=' | '?' | '@' | * '/' | '<' | '>' | '=' | '?' | '@' |
* '\' | '~' | '|' | '-' * '\' | '~' | '|' | '-'
@ -353,8 +353,8 @@ static int skip_comment (stix_t* stix)
static int get_ident (stix_t* stix) static int get_ident (stix_t* stix)
{ {
/* /*
* identifier ::= letter (letter | digit)* * identifier := alpha-char (alpha-char | digit-char)*
* keyword ::= identifier ':' * keyword := identifier ":"
*/ */
stix_uci_t c = stix->c->lxc.c; stix_uci_t c = stix->c->lxc.c;
@ -381,27 +381,27 @@ static int get_ident (stix_t* stix)
static int get_numlit (stix_t* stix, int negated) static int get_numlit (stix_t* stix, int negated)
{ {
/* /*
* <number literal> ::= ['-'] <number> * number-literal := number | ("-" number)
* <number> ::= integer | float | scaledDecimal * number := integer | float | scaledDecimal
* integer ::= decimalInteger | radixInteger * integer := decimal-integer | radix-integer
* decimalInteger ::= digits * decimal-integer := digit-char+
* digits ::= digit+ * radix-integer := radix-specifier "r" radix-digit+
* radixInteger ::= radixSpecifier 'r' radixDigits * radix-specifier := digit-char+
* radixSpecifier := digits * radix-digit := digit-char | upper-alpha-char
* radixDigits ::= (digit | uppercaseAlphabetic)+ *
* float ::= mantissa [exponentLetter exponent] * float := mantissa [exponentLetter exponent]
* mantissa ::= digits'.' digits * mantissa := digit-char+ "." digit-char+
* exponent ::= ['-']decimalInteger * exponent := ['-'] decimal-integer
* exponentLetter ::= 'e' | 'd' | 'q' * exponentLetter := 'e' | 'd' | 'q'
* scaledDecimal ::= scaledMantissa 's' [fractionalDigits] * scaledDecimal := scaledMantissa 's' [fractionalDigits]
* scaledMantissa ::= decimalInteger | mantissa * scaledMantissa := decimal-integer | mantissa
* fractionalDigits ::= decimalInteger * fractionalDigits := decimal-integer
*/ */
stix_uci_t c = stix->c->lxc.c; stix_uci_t c = stix->c->lxc.c;
stix->c->tok.type = STIX_IOTOK_NUMLIT; stix->c->tok.type = STIX_IOTOK_NUMLIT;
/*TODO: support complext numeric literals */ /*TODO: support a complex numeric literal */
do do
{ {
ADD_TOKEN_CHAR(stix, c); ADD_TOKEN_CHAR(stix, c);
@ -417,8 +417,8 @@ static int get_numlit (stix_t* stix, int negated)
static int get_charlit (stix_t* stix) static int get_charlit (stix_t* stix)
{ {
/* /*
* character_literal ::= '$' character * character-literal := "$" character
* character ::= "Any character in the implementation-defined character set" * character := normal-character | "'"
*/ */
stix_uci_t c = stix->c->lxc.c; /* even a new-line or white space would be taken */ stix_uci_t c = stix->c->lxc.c; /* even a new-line or white space would be taken */
@ -437,9 +437,10 @@ static int get_charlit (stix_t* stix)
static int get_strlit (stix_t* stix) static int get_strlit (stix_t* stix)
{ {
/* /*
* string_literal ::= stringDelimiter stringBody stringDelimiter * string-literal := single-quote string-character* single-quote
* stringBody ::= (nonStringDelimiter | (stringDelimiter stringDelimiter)*) * string-character := normal-character | (single-quote single-quote)
* stringDelimiter ::= ''' "a single quote" * single-quote := "'"
* normal-character := character-except-single-quote
*/ */
/* TODO: C-like string */ /* TODO: C-like string */
@ -452,20 +453,18 @@ static int get_strlit (stix_t* stix)
do do
{ {
ADD_TOKEN_CHAR (stix, c); ADD_TOKEN_CHAR (stix, c);
GET_CHAR (stix); GET_CHAR_TO (stix, c);
c = stix->c->lxc.c;
if (c == STIX_UCI_EOF) if (c == STIX_UCI_EOF)
{ {
/* string not closed */ /* string not closed */
set_syntax_error (stix, STIX_SYNERR_STRNC, &stix->c->lxc.l, STIX_NULL); set_syntax_error (stix, STIX_SYNERR_STRNC, &stix->c->tok.loc /*&stix->c->lxc.l*/, STIX_NULL);
return -1; return -1;
} }
} }
while (c != '\''); while (c != '\'');
GET_CHAR (stix); GET_CHAR_TO (stix, c);
c = stix->c->lxc.c;
} }
while (c == '\''); while (c == '\'');
@ -475,7 +474,7 @@ static int get_strlit (stix_t* stix)
static int get_binsel (stix_t* stix) static int get_binsel (stix_t* stix)
{ {
/* /*
* binarySelector ::= binarySelectorCharacter+ * binary-selector := binary-selector-character+
*/ */
stix_uci_t oc; stix_uci_t oc;
@ -597,7 +596,9 @@ retry:
goto single_char_token; goto single_char_token;
case '#': case '#':
/*ADD_TOKEN_CHAR(stix, c);*/ /*
* The hash sign is not the part of the token name.
* ADD_TOKEN_CHAR(stix, c); */
GET_CHAR_TO (stix, c); GET_CHAR_TO (stix, c);
switch (c) switch (c)
{ {
@ -612,21 +613,26 @@ retry:
GET_CHAR (stix); GET_CHAR (stix);
break; break;
case '[':
/* #[ - byte array literal */
ADD_TOKEN_CHAR(stix, c);
stix->c->tok.type = STIX_IOTOK_BPAREN;
GET_CHAR (stix);
break;
case '\'': case '\'':
/* #' - quoted symbol literal */ /* quoted symbol literal */
GET_CHAR (stix); GET_CHAR (stix);
if (get_strlit(stix) <= -1) return -1; if (get_strlit(stix) <= -1) return -1;
stix->c->tok.type = STIX_IOTOK_SYMLIT; stix->c->tok.type = STIX_IOTOK_SYMLIT;
break; break;
case '[':
/* #[ - byte array literal */
/* TODO */
break;
default: default:
/* unquoted symbol literal */ /* symbol-literal := "#" symbol-body
* symbol-body := identifier | keyword+ | binary-selector | string-literal
*/
/* unquoted symbol literal */
if (is_binselchar(c)) if (is_binselchar(c))
{ {
do do
@ -705,7 +711,6 @@ retry:
break; break;
} }
/*wprintf (L"TOK: %S\n", stix->c->tok.name.ptr);*/
return 0; return 0;
} }
@ -745,7 +750,7 @@ static int begin_include (stix_t* stix)
const stix_uch_t* io_name; const stix_uch_t* io_name;
io_name = add_io_name (stix, &stix->c->tok.name); io_name = add_io_name (stix, &stix->c->tok.name);
if (!io_name) goto oops; if (!io_name) return -1;
arg = (stix_ioarg_t*) stix_callocmem (stix, STIX_SIZEOF(*arg)); arg = (stix_ioarg_t*) stix_callocmem (stix, STIX_SIZEOF(*arg));
if (!arg) goto oops; if (!arg) goto oops;
@ -774,9 +779,6 @@ static int begin_include (stix_t* stix)
return 0; return 0;
oops: oops:
/* i don't need to free 'link' since it's linked to
* stix->c->io_names that's freed at the beginning of stix_read()
* or by stix_fini() */
if (arg) stix_freemem (stix, arg); if (arg) stix_freemem (stix, arg);
return -1; return -1;
} }
@ -817,11 +819,56 @@ static int end_include (stix_t* stix)
} }
static struct ksym_t
{
stix_oow_t len;
stix_uch_t str[10];
} ksyms[] = {
{ 4, { 'b','y','t','e' } },
{ 5, { 'c','l','a','s','s' } },
{ 9, { 'c','l','a','s','s','i','n','s','t' } },
{ 3, { 'd','c','l' } },
{ 7, { 'd','e','c','l','a','r','e' } },
{ 3, { 'f','u','n' } },
{ 8, { 'f','u','n','c','t','i','o','n' } },
{ 7, { 'i','n','c','l','u','d','e' } },
{ 8, { 'i','n','s','t','a','n','c','e' } },
{ 4, { 'm','a','i','n' } },
{ 7, { 'p','o','i','n','t','e','r' } },
{ 4, { 'w','o','r','d' } }
};
enum ksym_id_t
{
KSYM_BYTE,
KSYM_CLASS,
KSYM_CLASSINST,
KSYM_DCL,
KSYM_DECLARE,
KSYM_FUN,
KSYM_FUNCTION,
KSYM_INCLUDE,
KSYM_INSTANCE,
KSYM_MAIN,
KSYM_POINTER,
KSYM_WORD
};
typedef enum ksym_id_t ksym_id_t;
static int is_token_ksym (stix_t* stix, ksym_id_t id)
{
return stix->c->tok.type == STIX_IOTOK_SYMLIT &&
stix->c->tok.name.len == ksyms[id].len &&
stix_equalchars(stix->c->tok.name.ptr, ksyms[id].str, ksyms[id].len);
}
#if 0 #if 0
/* --------------------------------------------------------------------- /* ---------------------------------------------------------------------
* Parser and Code Generator * Parser and Code Generator
* --------------------------------------------------------------------- */ * --------------------------------------------------------------------- */
static STIX_INLINE int is_tok_pseudovar (stix_t* fsc) static STIX_INLINE int is_tok_pseudovar (stix_t* fsc)
{ {
return fsc->tok.type == STIX_IOTOK_IDENT && return fsc->tok.type == STIX_IOTOK_IDENT &&
@ -839,6 +886,7 @@ static STIX_INLINE int is_tok_binsel (stix_t* fsc, const stix_uch_t* sel)
stix_strequal (fsc->tok.name.ptr, sel); stix_strequal (fsc->tok.name.ptr, sel);
} }
#if 0 #if 0
#define EMIT_CODE_TEST(fsc,high,low) \ #define EMIT_CODE_TEST(fsc,high,low) \
@ -1193,10 +1241,10 @@ static int finish_method (stix_t* fsc)
static int parse_statements (stix_t* fsc) static int parse_statements (stix_t* fsc)
{ {
/* /*
* <statements> ::= (ORIGINAL->maybe wrong) * <statements> := (ORIGINAL->maybe wrong)
* (<return statement> ['.'] ) | * (<return statement> ['.'] ) |
* (<expression> ['.' [<statements>]]) * (<expression> ['.' [<statements>]])
* <statements> ::= (REVISED->correct?) * <statements> := (REVISED->correct?)
* <statement> ['. [<statements>]] * <statement> ['. [<statements>]]
*/ */
@ -1237,9 +1285,9 @@ static int parse_block_statements (stix_t* fsc)
static int parse_statement (stix_t* fsc) static int parse_statement (stix_t* fsc)
{ {
/* /*
* <statement> ::= <return statement> | <expression> * <statement> := <return statement> | <expression>
* <return statement> ::= returnOperator <expression> * <return statement> := returnOperator <expression>
* returnOperator ::= '^' * returnOperator := '^'
*/ */
if (fsc->tok.type == STIX_IOTOK_RETURN) { if (fsc->tok.type == STIX_IOTOK_RETURN) {
@ -1257,11 +1305,11 @@ static int parse_statement (stix_t* fsc)
static int parse_expression (stix_t* fsc) static int parse_expression (stix_t* fsc)
{ {
/* /*
* <expression> ::= <assignment> | <basic expression> * <expression> := <assignment> | <basic expression>
* <assignment> ::= <assignment target> assignmentOperator <expression> * <assignment> := <assignment target> assignmentOperator <expression>
* <basic expression> ::= <primary> [<messages> <cascaded messages>] * <basic expression> := <primary> [<messages> <cascaded messages>]
* <assignment target> ::= identifier * <assignment target> := identifier
* assignmentOperator ::= ':=' * assignmentOperator := ':='
*/ */
stix_vm_t* stx = fsc->stx; stix_vm_t* stx = fsc->stx;
@ -1301,7 +1349,7 @@ static int parse_basic_expression (
stix_t* fsc, const stix_uch_t* ident) stix_t* fsc, const stix_uch_t* ident)
{ {
/* /*
* <basic expression> ::= <primary> [<messages> <cascaded messages>] * <basic expression> := <primary> [<messages> <cascaded messages>]
*/ */
int is_super; int is_super;
@ -1318,7 +1366,7 @@ static int parse_assignment (
stix_t* fsc, const stix_uch_t* target) stix_t* fsc, const stix_uch_t* target)
{ {
/* /*
* <assignment> ::= <assignment target> assignmentOperator <expression> * <assignment> := <assignment target> assignmentOperator <expression>
*/ */
stix_word_t i; stix_word_t i;
@ -1363,7 +1411,7 @@ static int parse_primary (
stix_t* fsc, const stix_uch_t* ident, int* is_super) stix_t* fsc, const stix_uch_t* ident, int* is_super)
{ {
/* /*
* <primary> ::= * <primary> :=
* identifier | <literal> | * identifier | <literal> |
* <block constructor> | ( '('<expression>')' ) * <block constructor> | ( '('<expression>')' )
*/ */
@ -1520,10 +1568,10 @@ static int parse_primary_ident (
static int parse_block_constructor (stix_t* fsc) static int parse_block_constructor (stix_t* fsc)
{ {
/* /*
* <block constructor> ::= '[' <block body> ']' * <block constructor> := '[' <block body> ']'
* <block body> ::= [<block argument>* '|'] * <block body> := [<block argument>* '|']
* [<temporaries>] [<statements>] * [<temporaries>] [<statements>]
* <block argument> ::= ':' identifier * <block argument> := ':' identifier
*/ */
if (fsc->tok.type == STIX_IOTOK_COLON) if (fsc->tok.type == STIX_IOTOK_COLON)
@ -1573,11 +1621,11 @@ static int parse_message_continuation (
stix_t* fsc, int is_super) stix_t* fsc, int is_super)
{ {
/* /*
* <messages> ::= * <messages> :=
* (<unary message>+ <binary message>* [<keyword message>] ) | * (<unary message>+ <binary message>* [<keyword message>] ) |
* (<binary message>+ [<keyword message>] ) | * (<binary message>+ [<keyword message>] ) |
* <keyword message> * <keyword message>
* <cascaded messages> ::= (';' <messages>)* * <cascaded messages> := (';' <messages>)*
*/ */
if (parse_keyword_message(fsc, is_super) == -1) return -1; if (parse_keyword_message(fsc, is_super) == -1) return -1;
@ -1596,8 +1644,8 @@ static int parse_message_continuation (
static int parse_keyword_message (stix_t* fsc, int is_super) static int parse_keyword_message (stix_t* fsc, int is_super)
{ {
/* /*
* <keyword message> ::= (keyword <keyword argument> )+ * <keyword message> := (keyword <keyword argument> )+
* <keyword argument> ::= <primary> <unary message>* <binary message>* * <keyword argument> := <primary> <unary message>* <binary message>*
*/ */
stix_name_t name; stix_name_t name;
@ -1661,8 +1709,8 @@ static int parse_keyword_message (stix_t* fsc, int is_super)
static int parse_binary_message (stix_t* fsc, int is_super) static int parse_binary_message (stix_t* fsc, int is_super)
{ {
/* /*
* <binary message> ::= binarySelector <binary argument> * <binary message> := binary-selector <binary argument>
* <binary argument> ::= <primary> <unary message>* * <binary argument> := <primary> <unary message>*
*/ */
stix_word_t pos; stix_word_t pos;
int is_super2; int is_super2;
@ -1711,7 +1759,7 @@ static int parse_binary_message (stix_t* fsc, int is_super)
static int parse_unary_message (stix_t* fsc, int is_super) static int parse_unary_message (stix_t* fsc, int is_super)
{ {
/* <unary message> ::= unarySelector */ /* <unary message> := unarySelector */
stix_word_t pos; stix_word_t pos;
int n; int n;
@ -1735,7 +1783,7 @@ static int parse_unary_message (stix_t* fsc, int is_super)
static int parse_method (stix_t* fsc, stix_word_t method_class, void* input) static int parse_method (stix_t* fsc, stix_word_t method_class, void* input)
{ {
/* /*
* <method definition> ::= * <method definition> :=
* <message pattern> [<temporaries>] [<primitive>] [<statements>] * <message pattern> [<temporaries>] [<primitive>] [<statements>]
*/ */
@ -1945,10 +1993,10 @@ static int parse_keyword_pattern (stix_t* fsc)
static int parse_method_name_pattern (stix_t* fsc) static int parse_method_name_pattern (stix_t* fsc)
{ {
/* /*
* <message pattern> ::= <unary pattern> | <binary pattern> | <keyword pattern> * <message pattern> := <unary pattern> | <binary pattern> | <keyword pattern>
* <unary pattern> ::= unarySelector * <unary pattern> := unarySelector
* <binary pattern> ::= binarySelector <method argument> * <binary pattern> := binary-selector <method argument>
* <keyword pattern> ::= (keyword <method argument>)+ * <keyword pattern> := (keyword <method argument>)+
*/ */
int n; int n;
@ -1982,8 +2030,8 @@ static int parse_method_name_pattern (stix_t* fsc)
static int parse_method_temporaries (stix_t* fsc) static int parse_method_temporaries (stix_t* fsc)
{ {
/* /*
* <temporaries> ::= '|' <temporary variable list> '|' * <temporaries> := '|' <temporary variable list> '|'
* <temporary variable list> ::= identifier* * <temporary variable list> := identifier*
*/ */
if (!is_tok_binsel (fsc, STIX_T("|"))) return 0; if (!is_tok_binsel (fsc, STIX_T("|"))) return 0;
@ -2030,7 +2078,7 @@ static int parse_method_temporaries (stix_t* fsc)
static int parse_method_primitive (stix_t* fsc) static int parse_method_primitive (stix_t* fsc)
{ {
/* /*
* <primitive> ::= '<' 'primitive:' number '>' * <primitive> := '<' 'primitive:' number '>'
*/ */
int prim_no; int prim_no;
@ -2228,47 +2276,7 @@ static int compile_classdef (stix_t* fsc, class_type_t class_type)
GET_TOKEN (fsc); GET_TOKEN (fsc);
return 0; return 0;
} }
static int compile_directive (stix_t* fsc)
{
if (fsc->tok.type == STIX_IOTOK_IDENT)
{
class_type_t class_type;
if (get_class_type (fsc->tok.name.ptr, &class_type) >= 0)
{
if (get_token (fsc) <= -1) return -1;
return compile_classdef (fsc, class_type);
}
else if (stix_strequal (fsc->tok.name.ptr, STIX_T("include")))
{
if (get_token (fsc) <= -1) return -1;
if (fsc->tok.type != STIX_IOTOK_STRLIT)
{
stix_seterror (fsc, STIX_FSC_ESTRLIT, &fsc->tok.name, &fsc->tok.loc);
return -1;
}
if (begin_include (fsc) <= -1) return -1;
}
else
{
stix_seterror (fsc, STIX_FSC_EILDIR, &fsc->tok.name, &fsc->tok.loc);
return -1;
}
}
else
{
stix_seterror (fsc, STIX_FSC_EILDIR, &fsc->tok.name, &fsc->tok.loc);
return -1;
}
return 0;
}
#endif #endif
static int compile_stream (stix_t* stix) static int compile_stream (stix_t* stix)
{ {
@ -2288,25 +2296,39 @@ static int compile_stream (stix_t* stix)
while (stix->c->tok.type != STIX_IOTOK_EOF) while (stix->c->tok.type != STIX_IOTOK_EOF)
{ {
stix_size_t i; if (is_token_ksym(stix, KSYM_INCLUDE))
printf ("%d [", stix->c->tok.type);
for (i = 0; i < stix->c->tok.name.len; i++)
printf ("%c", stix->c->tok.name.ptr[i]);
printf ("]\n");
GET_TOKEN (stix);
#if 0
if (is_tok_binsel (stix, STIX_T("@")))
{ {
/* #include 'xxxx' */
GET_TOKEN (stix); GET_TOKEN (stix);
if (compile_directive (stix) <= -1) return -1;
if (stix->c->tok.type != STIX_IOTOK_STRLIT)
{
set_syntax_error (stix, STIX_SYNERR_STREX, &stix->c->tok.loc, &stix->c->tok.name);
return -1;
}
if (begin_include(stix) <= -1) return -1;
} }
/* TODO: normal smalltalk message sending expressions */
/*
else if (is_token_ksym(stix, KSYM_CLASS))
{
}
else if (is_token_ksym(stix, KSYM_MAIN))
{
}
*/
else else
{ {
stix_seterror (stix, STIX_FSC_EILTTOK, &stix->tok.name, &stix->tok.loc); /* TODO: error */
return -1; stix_size_t i;
printf ("%d [", stix->c->tok.type);
for (i = 0; i < stix->c->tok.name.len; i++)
printf ("%c", stix->c->tok.name.ptr[i]);
printf ("]\n");
GET_TOKEN (stix);
} }
#endif
} }
return 0; return 0;

5
stix/lib/main.c
View File

@ -78,6 +78,8 @@ static STIX_INLINE stix_ssize_t open_input (stix_t* stix, stix_ioarg_t* arg)
stix_seterrnum (stix, STIX_EECERR); stix_seterrnum (stix, STIX_EECERR);
return -1; return -1;
} }
arg->handle = fopen (bcs, "r");
} }
else else
{ {
@ -187,7 +189,8 @@ static char* syntax_error_msg[] =
"string not closed", "string not closed",
"no character after $", "no character after $",
"no valid character after #", "no valid character after #",
"missing colon" "missing colon",
"string expected" /* string expected in place of ${1} */
}; };
int main (int argc, char* argv[]) int main (int argc, char* argv[])

2
stix/lib/memo.txt
View File

@ -485,7 +485,7 @@ class Association(Magnitude) -> new Association inheriting Magnitude
class Association() -> new Association inheriting Stix class Association() -> new Association inheriting Stix
class(#byte) Association() -> new Association class inheriting Stix, but it's byte indexed. class(#byte) Association() -> new Association class inheriting Stix, but it's byte indexed.
class(#word) Association() -> new Association class inheriting Stix, but it's word indexed. class(#word) Association() -> new Association class inheriting Stix, but it's word indexed.
class(#oop) Association() -> new Association class inheriting Stix, but it's oop indexed. (it can have the variable part on top of the fixed part. response to the 'new: aSize' message) class(#pointer) Association() -> new Association class inheriting Stix, but it's oop indexed. (it can have the variable part on top of the fixed part. response to the 'new: aSize' message)
class(#word) Association(Magnitude) -> new Association class inheriting Magnitude, but it's word indexed. class(#word) Association(Magnitude) -> new Association class inheriting Magnitude, but it's word indexed.
class Association -> revisit the Association class defined previsously. Revisiting can add new methods. class Association -> revisit the Association class defined previsously. Revisiting can add new methods.

13
stix/lib/stix-prv.h
View File

@ -248,12 +248,13 @@ typedef struct stix_iotok_t stix_iotok_t;
enum stix_synerrnum_t enum stix_synerrnum_t
{ {
STIX_SYNERR_NOERR, STIX_SYNERR_NOERR,
STIX_SYNERR_ILCHR, /* illegal character */ STIX_SYNERR_ILCHR, /* illegal character */
STIX_SYNERR_CMTNC, /* comment not closed */ STIX_SYNERR_CMTNC, /* comment not closed */
STIX_SYNERR_STRNC, /* string not closed */ STIX_SYNERR_STRNC, /* string not closed */
STIX_SYNERR_CLTNT, /* character literal not terminated */ STIX_SYNERR_CLTNT, /* character literal not terminated */
STIX_SYNERR_HLTNT, /* hased literal not terminated */ STIX_SYNERR_HLTNT, /* hased literal not terminated */
STIX_SYNERR_CLNMS, /* colon missing */ STIX_SYNERR_CLNMS, /* colon missing */
STIX_SYNERR_STREX /* string expected */
}; };
typedef enum stix_synerrnum_t stix_synerrnum_t; typedef enum stix_synerrnum_t stix_synerrnum_t;