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authortenderlove <tenderlove@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-08-22 17:43:16 +0000
committertenderlove <tenderlove@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-08-22 17:43:16 +0000
commit5571c7315e118b339c6b6590e666dfda68a7327d (patch)
treefcff1492ba18c09a44d2d29431e320591e0ac9c1 /ext/syck/emitter.c
parentb8910f3751e985d04c2049be3c23c2ef5a9d9ecc (diff)
* ext/syck: removed. Fixes [ruby-core:43360]
* test/syck: removed. * lib/yaml.rb: only require psych, show a warning if people try to set the engine to syck. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36786 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/syck/emitter.c')
-rw-r--r--ext/syck/emitter.c1247
1 files changed, 0 insertions, 1247 deletions
diff --git a/ext/syck/emitter.c b/ext/syck/emitter.c
deleted file mode 100644
index af0d7891f8f..00000000000
--- a/ext/syck/emitter.c
+++ /dev/null
@@ -1,1247 +0,0 @@
-/*
- * emitter.c
- *
- * $Author$
- *
- * Copyright (C) 2003 why the lucky stiff
- *
- * All Base64 code from Ruby's pack.c.
- * Ruby is Copyright (C) 1993-2007 Yukihiro Matsumoto
- */
-#include "ruby/ruby.h"
-
-#include <stdio.h>
-#include <string.h>
-
-#include "syck.h"
-
-#define DEFAULT_ANCHOR_FORMAT "id%03d"
-
-const char hex_table[] =
-"0123456789ABCDEF";
-static char b64_table[] =
-"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-/*
- * Built-in base64 (from Ruby's pack.c)
- */
-char *
-syck_base64enc( char *s, long len )
-{
- long i = 0;
- int padding = '=';
- char *buff = S_ALLOC_N(char, len * 4 / 3 + 6);
-
- while (len >= 3) {
- buff[i++] = b64_table[077 & (*s >> 2)];
- buff[i++] = b64_table[077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017))];
- buff[i++] = b64_table[077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03))];
- buff[i++] = b64_table[077 & s[2]];
- s += 3;
- len -= 3;
- }
- if (len == 2) {
- buff[i++] = b64_table[077 & (*s >> 2)];
- buff[i++] = b64_table[077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017))];
- buff[i++] = b64_table[077 & (((s[1] << 2) & 074) | (('\0' >> 6) & 03))];
- buff[i++] = padding;
- }
- else if (len == 1) {
- buff[i++] = b64_table[077 & (*s >> 2)];
- buff[i++] = b64_table[077 & (((*s << 4) & 060) | (('\0' >> 4) & 017))];
- buff[i++] = padding;
- buff[i++] = padding;
- }
- buff[i++] = '\n';
- return buff;
-}
-
-char *
-syck_base64dec( char *s, long len )
-{
- int a = -1,b = -1,c = 0,d;
- static int first = 1;
- static int b64_xtable[256];
- char *ptr = syck_strndup( s, len );
- char *end = ptr;
- char *send = s + len;
-
- if (first) {
- int i;
- first = 0;
-
- for (i = 0; i < 256; i++) {
- b64_xtable[i] = -1;
- }
- for (i = 0; i < 64; i++) {
- b64_xtable[(int)b64_table[i]] = i;
- }
- }
- while (s < send) {
- while (s[0] == '\r' || s[0] == '\n') { s++; }
- if ((a = b64_xtable[(int)s[0]]) == -1) break;
- if ((b = b64_xtable[(int)s[1]]) == -1) break;
- if ((c = b64_xtable[(int)s[2]]) == -1) break;
- if ((d = b64_xtable[(int)s[3]]) == -1) break;
- *end++ = a << 2 | b >> 4;
- *end++ = b << 4 | c >> 2;
- *end++ = c << 6 | d;
- s += 4;
- }
- if (a != -1 && b != -1) {
- if (s + 2 < send && s[2] == '=')
- *end++ = a << 2 | b >> 4;
- if (c != -1 && s + 3 < send && s[3] == '=') {
- *end++ = a << 2 | b >> 4;
- *end++ = b << 4 | c >> 2;
- }
- }
- *end = '\0';
- /*RSTRING_LEN(buf) = ptr - RSTRING_PTR(buf);*/
- return ptr;
-}
-
-/*
- * Allocate an emitter
- */
-SyckEmitter *
-syck_new_emitter(void)
-{
- SyckEmitter *e;
- e = S_ALLOC( SyckEmitter );
- e->headless = 0;
- e->use_header = 0;
- e->use_version = 0;
- e->sort_keys = 0;
- e->anchor_format = NULL;
- e->explicit_typing = 0;
- e->best_width = 80;
- e->style = scalar_none;
- e->stage = doc_open;
- e->indent = 2;
- e->level = -1;
- e->anchors = NULL;
- e->markers = NULL;
- e->anchored = NULL;
- e->bufsize = SYCK_BUFFERSIZE;
- e->buffer = NULL;
- e->marker = NULL;
- e->bufpos = 0;
- e->emitter_handler = NULL;
- e->output_handler = NULL;
- e->lvl_idx = 0;
- e->lvl_capa = ALLOC_CT;
- e->levels = S_ALLOC_N( SyckLevel, e->lvl_capa );
- syck_emitter_reset_levels( e );
- e->bonus = NULL;
- return e;
-}
-
-int
-syck_st_free_anchors( char *key, char *name, char *arg )
-{
- S_FREE( name );
- return ST_CONTINUE;
-}
-
-void
-syck_emitter_st_free( SyckEmitter *e )
-{
- /*
- * Free the anchor tables
- */
- if ( e->anchors != NULL )
- {
- st_foreach( e->anchors, syck_st_free_anchors, 0 );
- st_free_table( e->anchors );
- e->anchors = NULL;
- }
-
- if ( e->anchored != NULL )
- {
- st_free_table( e->anchored );
- e->anchored = NULL;
- }
-
- /*
- * Free the markers tables
- */
- if ( e->markers != NULL )
- {
- st_free_table( e->markers );
- e->markers = NULL;
- }
-}
-
-SyckLevel *
-syck_emitter_current_level( SyckEmitter *e )
-{
- return &e->levels[e->lvl_idx-1];
-}
-
-SyckLevel *
-syck_emitter_parent_level( SyckEmitter *e )
-{
- return &e->levels[e->lvl_idx-2];
-}
-
-void
-syck_emitter_pop_level( SyckEmitter *e )
-{
- ASSERT( e != NULL );
-
- /* The root level should never be popped */
- if ( e->lvl_idx <= 1 ) return;
-
- e->lvl_idx -= 1;
- free( e->levels[e->lvl_idx].domain );
-}
-
-void
-syck_emitter_add_level( SyckEmitter *e, int len, enum syck_level_status status )
-{
- ASSERT( e != NULL );
- if ( e->lvl_idx + 1 > e->lvl_capa )
- {
- e->lvl_capa += ALLOC_CT;
- S_REALLOC_N( e->levels, SyckLevel, e->lvl_capa );
- }
-
- ASSERT( len > e->levels[e->lvl_idx-1].spaces );
- e->levels[e->lvl_idx].spaces = len;
- e->levels[e->lvl_idx].ncount = 0;
- e->levels[e->lvl_idx].domain = syck_strndup( e->levels[e->lvl_idx-1].domain, strlen( e->levels[e->lvl_idx-1].domain ) );
- e->levels[e->lvl_idx].status = status;
- e->levels[e->lvl_idx].anctag = 0;
- e->lvl_idx += 1;
-}
-
-void
-syck_emitter_reset_levels( SyckEmitter *e )
-{
- while ( e->lvl_idx > 1 )
- {
- syck_emitter_pop_level( e );
- }
-
- if ( e->lvl_idx < 1 )
- {
- e->lvl_idx = 1;
- e->levels[0].spaces = -1;
- e->levels[0].ncount = 0;
- e->levels[0].domain = syck_strndup( "", 0 );
- e->levels[0].anctag = 0;
- }
- e->levels[0].status = syck_lvl_header;
-}
-
-void
-syck_emitter_handler( SyckEmitter *e, SyckEmitterHandler hdlr )
-{
- e->emitter_handler = hdlr;
-}
-
-void
-syck_output_handler( SyckEmitter *e, SyckOutputHandler hdlr )
-{
- e->output_handler = hdlr;
-}
-
-void
-syck_free_emitter( SyckEmitter *e )
-{
- /*
- * Free tables
- */
- syck_emitter_st_free( e );
- syck_emitter_reset_levels( e );
- S_FREE( e->levels[0].domain );
- S_FREE( e->levels );
- if ( e->buffer != NULL )
- {
- S_FREE( e->buffer );
- }
- S_FREE( e );
-}
-
-void
-syck_emitter_clear( SyckEmitter *e )
-{
- if ( e->buffer == NULL )
- {
- e->buffer = S_ALLOC_N( char, e->bufsize );
- S_MEMZERO( e->buffer, char, e->bufsize );
- }
- e->buffer[0] = '\0';
- e->marker = e->buffer;
- e->bufpos = 0;
-}
-
-/*
- * Raw write to the emitter buffer.
- */
-void
-syck_emitter_write( SyckEmitter *e, const char *str, long len )
-{
- long at;
- ASSERT( str != NULL );
- if ( e->buffer == NULL )
- {
- syck_emitter_clear( e );
- }
-
- /*
- * Flush if at end of buffer
- */
- at = e->marker - e->buffer;
- if ( len + at >= (long)e->bufsize )
- {
- syck_emitter_flush( e, 0 );
- for (;;) {
- long rest = e->bufsize - (e->marker - e->buffer);
- if (len <= rest) break;
- S_MEMCPY( e->marker, str, char, rest );
- e->marker += rest;
- str += rest;
- len -= rest;
- syck_emitter_flush( e, 0 );
- }
- }
-
- /*
- * Write to buffer
- */
- S_MEMCPY( e->marker, str, char, len );
- e->marker += len;
-}
-
-/*
- * Write a chunk of data out.
- */
-void
-syck_emitter_flush( SyckEmitter *e, long check_room )
-{
- /*
- * Check for enough space in the buffer for check_room length.
- */
- if ( check_room > 0 )
- {
- if ( (long)e->bufsize > ( e->marker - e->buffer ) + check_room )
- {
- return;
- }
- }
- else
- {
- check_room = e->bufsize;
- }
-
- /*
- * Commit buffer.
- */
- if ( check_room > e->marker - e->buffer )
- {
- check_room = e->marker - e->buffer;
- }
- (e->output_handler)( e, e->buffer, check_room );
- e->bufpos += check_room;
- e->marker -= check_room;
-}
-
-/*
- * Start emitting from the given node, check for anchoring and then
- * issue the callback to the emitter handler.
- */
-void
-syck_emit( SyckEmitter *e, st_data_t n )
-{
- SYMID oid;
- char *anchor_name = NULL;
- int indent = 0;
- long x = 0;
- SyckLevel *lvl = syck_emitter_current_level( e );
-
- /*
- * Determine headers.
- */
- if ( e->stage == doc_open && ( e->headless == 0 || e->use_header == 1 ) )
- {
- if ( e->use_version == 1 )
- {
- char *header = S_ALLOC_N( char, 64 );
- S_MEMZERO( header, char, 64 );
- sprintf( header, "--- %%YAML:%d.%d ", SYCK_YAML_MAJOR, SYCK_YAML_MINOR );
- syck_emitter_write( e, header, strlen( header ) );
- S_FREE( header );
- }
- else
- {
- syck_emitter_write( e, "--- ", 4 );
- }
- e->stage = doc_processing;
- }
-
- /* Add new level */
- if ( lvl->spaces >= 0 ) {
- indent = lvl->spaces + e->indent;
- }
- syck_emitter_add_level( e, indent, syck_lvl_open );
- lvl = syck_emitter_current_level( e );
-
- /* Look for anchor */
- if ( e->anchors != NULL &&
- st_lookup( e->markers, n, (st_data_t *)&oid ) &&
- st_lookup( e->anchors, (st_data_t)oid, (void *)&anchor_name ) )
- {
- if ( e->anchored == NULL )
- {
- e->anchored = st_init_numtable();
- }
-
- if ( ! st_lookup( e->anchored, (st_data_t)anchor_name, (st_data_t *)&x ) )
- {
- char *an = S_ALLOC_N( char, strlen( anchor_name ) + 3 );
- sprintf( an, "&%s ", anchor_name );
- syck_emitter_write( e, an, strlen( anchor_name ) + 2 );
- free( an );
-
- x = 1;
- st_insert( e->anchored, (st_data_t)anchor_name, (st_data_t)x );
- lvl->anctag = 1;
- }
- else
- {
- char *an = S_ALLOC_N( char, strlen( anchor_name ) + 2 );
- sprintf( an, "*%s", anchor_name );
- syck_emitter_write( e, an, strlen( anchor_name ) + 1 );
- free( an );
-
- goto end_emit;
- }
- }
-
- (e->emitter_handler)( e, n );
-
- /* Pop the level */
-end_emit:
- syck_emitter_pop_level( e );
- if ( e->lvl_idx == 1 ) {
- syck_emitter_write( e, "\n", 1 );
- e->headless = 0;
- e->stage = doc_open;
- }
-}
-
-/*
- * Determine what tag needs to be written, based on the taguri of the node
- * and the implicit tag which would be assigned to this node. If a tag is
- * required, write the tag.
- */
-void syck_emit_tag( SyckEmitter *e, const char *tag, const char *ignore )
-{
- SyckLevel *lvl;
- if ( tag == NULL ) return;
- if ( ignore != NULL && syck_tagcmp( tag, ignore ) == 0 && e->explicit_typing == 0 ) return;
- lvl = syck_emitter_current_level( e );
-
- /* implicit */
- if ( strlen( tag ) == 0 ) {
- syck_emitter_write( e, "! ", 2 );
-
- /* global types */
- } else if ( strncmp( tag, "tag:", 4 ) == 0 ) {
- int taglen = (int)strlen( tag );
- syck_emitter_write( e, "!", 1 );
- if ( strncmp( tag + 4, YAML_DOMAIN, strlen( YAML_DOMAIN ) ) == 0 ) {
- int skip = 4 + strlen( YAML_DOMAIN ) + 1;
- syck_emitter_write( e, tag + skip, taglen - skip );
- } else {
- const char *subd = tag + 4;
- while ( *subd != ':' && *subd != '\0' ) subd++;
- if ( *subd == ':' ) {
- if ( subd - tag > ( (long)( strlen( YAML_DOMAIN ) + 5 )) &&
- strncmp( subd - strlen( YAML_DOMAIN ), YAML_DOMAIN, strlen( YAML_DOMAIN ) ) == 0 ) {
- syck_emitter_write( e, tag + 4, subd - strlen( YAML_DOMAIN ) - ( tag + 4 ) - 1 );
- syck_emitter_write( e, "/", 1 );
- syck_emitter_write( e, subd + 1, ( tag + taglen ) - ( subd + 1 ) );
- } else {
- syck_emitter_write( e, tag + 4, subd - ( tag + 4 ) );
- syck_emitter_write( e, "/", 1 );
- syck_emitter_write( e, subd + 1, ( tag + taglen ) - ( subd + 1 ) );
- }
- } else {
- /* TODO: Invalid tag (no colon after domain) */
- return;
- }
- }
- syck_emitter_write( e, " ", 1 );
-
- /* private types */
- } else if ( strncmp( tag, "x-private:", 10 ) == 0 ) {
- syck_emitter_write( e, "!!", 2 );
- syck_emitter_write( e, tag + 10, strlen( tag ) - 10 );
- syck_emitter_write( e, " ", 1 );
- }
- lvl->anctag = 1;
-}
-
-/*
- * Emit a newline and an appropriately spaced indent.
- */
-void syck_emit_indent( SyckEmitter *e )
-{
- int i;
- SyckLevel *lvl = syck_emitter_current_level( e );
- if ( e->bufpos == 0 && ( e->marker - e->buffer ) == 0 ) return;
- if ( lvl->spaces >= 0 ) {
- char *spcs = S_ALLOC_N( char, lvl->spaces + 2 );
-
- spcs[0] = '\n'; spcs[lvl->spaces + 1] = '\0';
- for ( i = 0; i < lvl->spaces; i++ ) spcs[i+1] = ' ';
- syck_emitter_write( e, spcs, lvl->spaces + 1 );
- free( spcs );
- }
-}
-
-/* Clear the scan */
-#define SCAN_NONE 0
-/* All printable characters? */
-#define SCAN_NONPRINT 1
-/* Any indented lines? */
-#define SCAN_INDENTED 2
-/* Larger than the requested width? */
-#define SCAN_WIDE 4
-/* Opens or closes with whitespace? */
-#define SCAN_WHITEEDGE 8
-/* Contains a newline */
-#define SCAN_NEWLINE 16
-/* Contains a single quote */
-#define SCAN_SINGLEQ 32
-/* Contains a double quote */
-#define SCAN_DOUBLEQ 64
-/* Starts with a token */
-#define SCAN_INDIC_S 128
-/* Contains a flow indicator */
-#define SCAN_INDIC_C 256
-/* Ends without newlines */
-#define SCAN_NONL_E 512
-/* Ends with many newlines */
-#define SCAN_MANYNL_E 1024
-/* Contains flow map indicators */
-#define SCAN_FLOWMAP 2048
-/* Contains flow seq indicators */
-#define SCAN_FLOWSEQ 4096
-/* Contains a valid doc separator */
-#define SCAN_DOCSEP 8192
-
-/*
- * Basic printable test for LATIN-1 characters.
- */
-int
-syck_scan_scalar( int req_width, const char *cursor, long len )
-{
- long i = 0, start = 0;
- int flags = SCAN_NONE;
-
- if ( len < 1 ) return flags;
-
- /* c-indicators from the spec */
- if ( cursor[0] == '[' || cursor[0] == ']' ||
- cursor[0] == '{' || cursor[0] == '}' ||
- cursor[0] == '!' || cursor[0] == '*' ||
- cursor[0] == '&' || cursor[0] == '|' ||
- cursor[0] == '>' || cursor[0] == '\'' ||
- cursor[0] == '"' || cursor[0] == '#' ||
- cursor[0] == '%' || cursor[0] == '@' ||
- cursor[0] == '&' ) {
- flags |= SCAN_INDIC_S;
- }
- if ( ( cursor[0] == '-' || cursor[0] == ':' ||
- cursor[0] == '?' || cursor[0] == ',' ) &&
- ( len == 1 || cursor[1] == ' ' || cursor[1] == '\n' ) )
- {
- flags |= SCAN_INDIC_S;
- }
-
- /* whitespace edges */
- if ( cursor[len-1] != '\n' ) {
- flags |= SCAN_NONL_E;
- } else if ( len > 1 && cursor[len-2] == '\n' ) {
- flags |= SCAN_MANYNL_E;
- }
- if (
- ( len > 0 && ( cursor[0] == ' ' || cursor[0] == '\t' || cursor[0] == '\n' || cursor[0] == '\r' ) ) ||
- ( len > 1 && ( cursor[len-1] == ' ' || cursor[len-1] == '\t' ) )
- ) {
- flags |= SCAN_WHITEEDGE;
- }
-
- /* opening doc sep */
- if ( len >= 3 && strncmp( cursor, "---", 3 ) == 0 )
- flags |= SCAN_DOCSEP;
-
- /* scan string */
- for ( i = 0; i < len; i++ ) {
-
- if ( ! ( cursor[i] == 0x9 ||
- cursor[i] == 0xA ||
- cursor[i] == 0xD ||
- ( cursor[i] >= 0x20 && cursor[i] <= 0x7E ) )
- ) {
- flags |= SCAN_NONPRINT;
- }
- else if ( cursor[i] == '\n' ) {
- flags |= SCAN_NEWLINE;
- if ( len - i >= 3 && strncmp( &cursor[i+1], "---", 3 ) == 0 )
- flags |= SCAN_DOCSEP;
- if ( cursor[i+1] == ' ' || cursor[i+1] == '\t' )
- flags |= SCAN_INDENTED;
- if ( req_width > 0 && i - start > req_width )
- flags |= SCAN_WIDE;
- start = i;
- }
- else if ( cursor[i] == '\'' )
- {
- flags |= SCAN_SINGLEQ;
- }
- else if ( cursor[i] == '"' )
- {
- flags |= SCAN_DOUBLEQ;
- }
- else if ( cursor[i] == ']' )
- {
- flags |= SCAN_FLOWSEQ;
- }
- else if ( cursor[i] == '}' )
- {
- flags |= SCAN_FLOWMAP;
- }
- /* remember, if plain collections get implemented, to add nb-plain-flow-char */
- else if ( ( cursor[i] == ' ' && cursor[i+1] == '#' ) ||
- ( cursor[i] == ':' &&
- ( cursor[i+1] == ' ' || cursor[i+1] == '\n' || i == len - 1 ) ) )
- {
- flags |= SCAN_INDIC_C;
- }
- else if ( cursor[i] == ',' &&
- ( cursor[i+1] == ' ' || cursor[i+1] == '\n' || i == len - 1 ) )
- {
- flags |= SCAN_FLOWMAP;
- flags |= SCAN_FLOWSEQ;
- }
- }
-
- /* printf( "---STR---\n%s\nFLAGS: %d\n", cursor, flags ); */
- return flags;
-}
-/*
- * All scalars should be emitted through this function, which determines an appropriate style,
- * tag and indent.
- */
-void syck_emit_scalar( SyckEmitter *e, const char *tag, enum scalar_style force_style, int force_indent, int force_width,
- char keep_nl, const char *str, long len )
-{
- enum scalar_style favor_style = scalar_literal;
- SyckLevel *parent = syck_emitter_parent_level( e );
- SyckLevel *lvl = syck_emitter_current_level( e );
- int scan = 0;
- const char *match_implicit;
- char *implicit;
-
- if ( str == NULL ) str = "";
-
- /* No empty nulls as map keys */
- if ( len == 0 && ( parent->status == syck_lvl_map || parent->status == syck_lvl_imap ) &&
- parent->ncount % 2 == 1 && syck_tagcmp( tag, "tag:yaml.org,2002:null" ) == 0 )
- {
- str = "~";
- len = 1;
- }
-
- scan = syck_scan_scalar( force_width, str, len );
- match_implicit = syck_match_implicit( str, len );
-
- /* quote strings which default to implicits */
- implicit = syck_taguri( YAML_DOMAIN, match_implicit, (int)strlen( match_implicit ) );
- if ( syck_tagcmp( tag, implicit ) != 0 && syck_tagcmp( tag, "tag:yaml.org,2002:str" ) == 0 ) {
- force_style = scalar_2quote;
- } else {
- /* complex key */
- if ( parent->status == syck_lvl_map && parent->ncount % 2 == 1 &&
- ( !( tag == NULL ||
- ( implicit != NULL && syck_tagcmp( tag, implicit ) == 0 && e->explicit_typing == 0 ) ) ) )
- {
- syck_emitter_write( e, "? ", 2 );
- parent->status = syck_lvl_mapx;
- }
- syck_emit_tag( e, tag, implicit );
- }
- S_FREE( implicit );
-
- /* if still arbitrary, sniff a good block style. */
- if ( force_style == scalar_none ) {
- if ( scan & SCAN_NEWLINE ) {
- force_style = scalar_literal;
- } else {
- force_style = scalar_plain;
- }
- }
-
- if ( e->style == scalar_fold ) {
- favor_style = scalar_fold;
- }
-
- /* Determine block style */
- if ( scan & SCAN_NONPRINT ) {
- force_style = scalar_2quote;
- } else if ( scan & SCAN_WHITEEDGE ) {
- force_style = scalar_2quote;
- } else if ( force_style != scalar_fold && ( scan & SCAN_INDENTED ) ) {
- force_style = scalar_literal;
- } else if ( force_style == scalar_plain && ( scan & SCAN_NEWLINE ) ) {
- force_style = favor_style;
- } else if ( force_style == scalar_plain && parent->status == syck_lvl_iseq && ( scan & SCAN_FLOWSEQ ) ) {
- force_style = scalar_2quote;
- } else if ( force_style == scalar_plain && parent->status == syck_lvl_imap && ( scan & SCAN_FLOWMAP ) ) {
- force_style = scalar_2quote;
- /* } else if ( force_style == scalar_fold && ( ! ( scan & SCAN_WIDE ) ) ) {
- force_style = scalar_literal; */
- } else if ( force_style == scalar_plain && ( scan & SCAN_INDIC_S || scan & SCAN_INDIC_C ) ) {
- if ( scan & SCAN_NEWLINE ) {
- force_style = favor_style;
- } else {
- force_style = scalar_2quote;
- }
- }
-
- if ( force_indent > 0 ) {
- lvl->spaces = parent->spaces + force_indent;
- } else if ( scan & SCAN_DOCSEP ) {
- lvl->spaces = parent->spaces + e->indent;
- }
-
- /* For now, all ambiguous keys are going to be double-quoted */
- if ( ( parent->status == syck_lvl_map || parent->status == syck_lvl_mapx ) && parent->ncount % 2 == 1 ) {
- if ( force_style != scalar_plain ) {
- force_style = scalar_2quote;
- }
- }
-
- /* If the parent is an inline, double quote anything complex */
- if ( parent->status == syck_lvl_imap || parent->status == syck_lvl_iseq ) {
- if ( force_style != scalar_plain && force_style != scalar_1quote ) {
- force_style = scalar_2quote;
- }
- }
-
- /* Fix the ending newlines */
- if ( scan & SCAN_NONL_E ) {
- keep_nl = NL_CHOMP;
- } else if ( scan & SCAN_MANYNL_E ) {
- keep_nl = NL_KEEP;
- }
-
- /* Write the text node */
- switch ( force_style )
- {
- case scalar_1quote:
- syck_emit_1quoted( e, force_width, str, len );
- break;
-
- case scalar_none:
- case scalar_2quote:
- syck_emit_2quoted( e, force_width, str, len );
- break;
-
- case scalar_fold:
- syck_emit_folded( e, force_width, keep_nl, str, len );
- break;
-
- case scalar_literal:
- syck_emit_literal( e, keep_nl, str, len );
- break;
-
- case scalar_plain:
- syck_emitter_write( e, str, len );
- break;
- }
-
- if ( parent->status == syck_lvl_mapx )
- {
- syck_emitter_write( e, "\n", 1 );
- }
-}
-
-void
-syck_emitter_escape( SyckEmitter *e, const char *src, long len )
-{
- int i;
- for( i = 0; i < len; i++ )
- {
- if( (src[i] < 0x20) || (0x7E < src[i]) )
- {
- syck_emitter_write( e, "\\", 1 );
- if( '\0' == src[i] )
- syck_emitter_write( e, "0", 1 );
- else
- {
- syck_emitter_write( e, "x", 1 );
- syck_emitter_write( e, (const char *)hex_table + ((src[i] & 0xF0) >> 4), 1 );
- syck_emitter_write( e, (const char *)hex_table + (src[i] & 0x0F), 1 );
- }
- }
- else
- {
- syck_emitter_write( e, src + i, 1 );
- if( '\\' == src[i] )
- syck_emitter_write( e, "\\", 1 );
- }
- }
-}
-
-/*
- * Outputs a single-quoted block.
- */
-void
-syck_emit_1quoted( SyckEmitter *e, int width, const char *str, long len )
-{
- char do_indent = 0;
- const char *mark = str;
- const char *start = str;
- const char *end = str;
- syck_emitter_write( e, "'", 1 );
- while ( mark < str + len ) {
- if ( do_indent ) {
- syck_emit_indent( e );
- do_indent = 0;
- }
- switch ( *mark ) {
- case '\'': syck_emitter_write( e, "'", 1 ); break;
-
- case '\n':
- end = mark + 1;
- if ( *start != ' ' && *start != '\n' && *end != '\n' && *end != ' ' ) {
- syck_emitter_write( e, "\n\n", 2 );
- } else {
- syck_emitter_write( e, "\n", 1 );
- }
- do_indent = 1;
- start = mark + 1;
- break;
-
- case ' ':
- if ( width > 0 && *start != ' ' && mark - end > width ) {
- do_indent = 1;
- end = mark + 1;
- } else {
- syck_emitter_write( e, " ", 1 );
- }
- break;
-
- default:
- syck_emitter_write( e, mark, 1 );
- break;
- }
- mark++;
- }
- syck_emitter_write( e, "'", 1 );
-}
-
-/*
- * Outputs a double-quoted block.
- */
-void
-syck_emit_2quoted( SyckEmitter *e, int width, const char *str, long len )
-{
- char do_indent = 0;
- const char *mark = str;
- const char *start = str;
- const char *end = str;
- syck_emitter_write( e, "\"", 1 );
- while ( mark < str + len ) {
- if ( do_indent > 0 ) {
- if ( do_indent == 2 ) {
- syck_emitter_write( e, "\\", 1 );
- }
- syck_emit_indent( e );
- do_indent = 0;
- }
- switch ( *mark ) {
-
- /* Escape sequences allowed within double quotes. */
- case '"': syck_emitter_write( e, "\\\"", 2 ); break;
- case '\\': syck_emitter_write( e, "\\\\", 2 ); break;
- case '\0': syck_emitter_write( e, "\\0", 2 ); break;
- case '\a': syck_emitter_write( e, "\\a", 2 ); break;
- case '\b': syck_emitter_write( e, "\\b", 2 ); break;
- case '\f': syck_emitter_write( e, "\\f", 2 ); break;
- case '\r': syck_emitter_write( e, "\\r", 2 ); break;
- case '\t': syck_emitter_write( e, "\\t", 2 ); break;
- case '\v': syck_emitter_write( e, "\\v", 2 ); break;
- case 0x1b: syck_emitter_write( e, "\\e", 2 ); break;
-
- case '\n':
- end = mark + 1;
- syck_emitter_write( e, "\\n", 2 );
- do_indent = 2;
- start = mark + 1;
- if ( start < str + len && ( *start == ' ' || *start == '\n' ) ) {
- do_indent = 0;
- }
- break;
-
- case ' ':
- if ( width > 0 && *start != ' ' && mark - end > width ) {
- do_indent = 1;
- end = mark + 1;
- } else {
- syck_emitter_write( e, " ", 1 );
- }
- break;
-
- default:
- syck_emitter_escape( e, mark, 1 );
- break;
- }
- mark++;
- }
- syck_emitter_write( e, "\"", 1 );
-}
-
-/*
- * Outputs a literal block.
- */
-void
-syck_emit_literal( SyckEmitter *e, char keep_nl, const char *str, long len )
-{
- const char *mark = str;
- const char *start = str;
- const char *end = str;
- syck_emitter_write( e, "|", 1 );
- if ( keep_nl == NL_CHOMP ) {
- syck_emitter_write( e, "-", 1 );
- } else if ( keep_nl == NL_KEEP ) {
- syck_emitter_write( e, "+", 1 );
- }
- syck_emit_indent( e );
- while ( mark < str + len ) {
- if ( *mark == '\n' ) {
- end = mark;
- if ( *start != ' ' && *start != '\n' && *end != '\n' && *end != ' ' ) end += 1;
- syck_emitter_write( e, start, end - start );
- if ( mark + 1 == str + len ) {
- if ( keep_nl != NL_KEEP ) syck_emitter_write( e, "\n", 1 );
- } else {
- syck_emit_indent( e );
- }
- start = mark + 1;
- }
- mark++;
- }
- end = str + len;
- if ( start < end ) {
- syck_emitter_write( e, start, end - start );
- }
-}
-
-/*
- * Outputs a folded block.
- */
-void
-syck_emit_folded( SyckEmitter *e, int width, char keep_nl, const char *str, long len )
-{
- const char *mark = str;
- const char *start = str;
- const char *end = str;
- syck_emitter_write( e, ">", 1 );
- if ( keep_nl == NL_CHOMP ) {
- syck_emitter_write( e, "-", 1 );
- } else if ( keep_nl == NL_KEEP ) {
- syck_emitter_write( e, "+", 1 );
- }
- syck_emit_indent( e );
- if ( width <= 0 ) width = e->best_width;
- while ( mark < str + len ) {
- switch ( *mark ) {
- case '\n':
- syck_emitter_write( e, end, mark - end );
- end = mark + 1;
- if ( *start != ' ' && *start != '\n' && *end != '\n' && *end != ' ' ) {
- syck_emitter_write( e, "\n", 1 );
- }
- if ( mark + 1 == str + len ) {
- if ( keep_nl != NL_KEEP ) syck_emitter_write( e, "\n", 1 );
- } else {
- syck_emit_indent( e );
- }
- start = mark + 1;
- break;
-
- case ' ':
- if ( *start != ' ' ) {
- if ( mark - end > width ) {
- syck_emitter_write( e, end, mark - end );
- syck_emit_indent( e );
- end = mark + 1;
- }
- }
- break;
- }
- mark++;
- }
- if ( end < mark ) {
- syck_emitter_write( e, end, mark - end );
- }
-}
-
-/*
- * Begins emission of a sequence.
- */
-void syck_emit_seq( SyckEmitter *e, const char *tag, enum seq_style style )
-{
- SyckLevel *parent = syck_emitter_parent_level( e );
- SyckLevel *lvl = syck_emitter_current_level( e );
- syck_emit_tag( e, tag, "tag:yaml.org,2002:seq" );
- if ( style == seq_inline || ( parent->status == syck_lvl_imap || parent->status == syck_lvl_iseq ) ) {
- syck_emitter_write( e, "[", 1 );
- lvl->status = syck_lvl_iseq;
- } else {
- /* complex key */
- if ( parent->status == syck_lvl_map && parent->ncount % 2 == 1 ) {
- syck_emitter_write( e, "? ", 2 );
- parent->status = syck_lvl_mapx;
- }
- lvl->status = syck_lvl_seq;
- }
-}
-
-/*
- * Begins emission of a mapping.
- */
-void
-syck_emit_map( SyckEmitter *e, const char *tag, enum map_style style )
-{
- SyckLevel *parent = syck_emitter_parent_level( e );
- SyckLevel *lvl = syck_emitter_current_level( e );
- syck_emit_tag( e, tag, "tag:yaml.org,2002:map" );
- if ( style == map_inline || ( parent->status == syck_lvl_imap || parent->status == syck_lvl_iseq ) ) {
- syck_emitter_write( e, "{", 1 );
- lvl->status = syck_lvl_imap;
- } else {
- /* complex key */
- if ( parent->status == syck_lvl_map && parent->ncount % 2 == 1 ) {
- syck_emitter_write( e, "? ", 2 );
- parent->status = syck_lvl_mapx;
- }
- lvl->status = syck_lvl_map;
- }
-}
-
-/*
- * Handles emitting of a collection item (for both
- * sequences and maps)
- */
-void syck_emit_item( SyckEmitter *e, st_data_t n )
-{
- SyckLevel *lvl = syck_emitter_current_level( e );
- switch ( lvl->status )
- {
- case syck_lvl_seq:
- {
- SyckLevel *parent = syck_emitter_parent_level( e );
-
- /* seq-in-map shortcut -- the lvl->anctag check should be unneccesary but
- * there is a nasty shift/reduce in the parser on this point and
- * i'm not ready to tickle it. */
- if ( lvl->anctag == 0 && parent->status == syck_lvl_map && lvl->ncount == 0 ) {
- lvl->spaces = parent->spaces;
- }
-
- /* seq-in-seq shortcut */
- else if ( lvl->anctag == 0 && parent->status == syck_lvl_seq && lvl->ncount == 0 ) {
- int spcs = ( lvl->spaces - parent->spaces ) - 2;
- if ( spcs >= 0 ) {
- int i = 0;
- for ( i = 0; i < spcs; i++ ) {
- syck_emitter_write( e, " ", 1 );
- }
- syck_emitter_write( e, "- ", 2 );
- break;
- }
- }
-
- syck_emit_indent( e );
- syck_emitter_write( e, "- ", 2 );
- }
- break;
-
- case syck_lvl_iseq:
- {
- if ( lvl->ncount > 0 ) {
- syck_emitter_write( e, ", ", 2 );
- }
- }
- break;
-
- case syck_lvl_map:
- {
- SyckLevel *parent = syck_emitter_parent_level( e );
-
- /* map-in-seq shortcut */
- if ( lvl->anctag == 0 && parent->status == syck_lvl_seq && lvl->ncount == 0 ) {
- int spcs = ( lvl->spaces - parent->spaces ) - 2;
- if ( spcs >= 0 ) {
- int i = 0;
- for ( i = 0; i < spcs; i++ ) {
- syck_emitter_write( e, " ", 1 );
- }
- break;
- }
- }
-
- if ( lvl->ncount % 2 == 0 ) {
- syck_emit_indent( e );
- } else {
- syck_emitter_write( e, ": ", 2 );
- }
- }
- break;
-
- case syck_lvl_mapx:
- {
- if ( lvl->ncount % 2 == 0 ) {
- syck_emit_indent( e );
- lvl->status = syck_lvl_map;
- } else {
- int i;
- if ( lvl->spaces > 0 ) {
- char *spcs = S_ALLOC_N( char, lvl->spaces + 1 );
-
- spcs[lvl->spaces] = '\0';
- for ( i = 0; i < lvl->spaces; i++ ) spcs[i] = ' ';
- syck_emitter_write( e, spcs, lvl->spaces );
- S_FREE( spcs );
- }
- syck_emitter_write( e, ": ", 2 );
- }
- }
- break;
-
- case syck_lvl_imap:
- {
- if ( lvl->ncount > 0 ) {
- if ( lvl->ncount % 2 == 0 ) {
- syck_emitter_write( e, ", ", 2 );
- } else {
- syck_emitter_write( e, ": ", 2 );
- }
- }
- }
- break;
-
- default: break;
- }
- lvl->ncount++;
-
- syck_emit( e, n );
-}
-
-/*
- * Closes emission of a collection.
- */
-void syck_emit_end( SyckEmitter *e )
-{
- SyckLevel *lvl = syck_emitter_current_level( e );
- SyckLevel *parent = syck_emitter_parent_level( e );
- switch ( lvl->status )
- {
- case syck_lvl_seq:
- if ( lvl->ncount == 0 ) {
- syck_emitter_write( e, "[]\n", 3 );
- } else if ( parent->status == syck_lvl_mapx ) {
- syck_emitter_write( e, "\n", 1 );
- }
- break;
-
- case syck_lvl_iseq:
- syck_emitter_write( e, "]\n", 1 );
- break;
-
- case syck_lvl_map:
- if ( lvl->ncount == 0 ) {
- syck_emitter_write( e, "{}\n", 3 );
- } else if ( lvl->ncount % 2 == 1 ) {
- syck_emitter_write( e, ":\n", 1 );
- } else if ( parent->status == syck_lvl_mapx ) {
- syck_emitter_write( e, "\n", 1 );
- }
- break;
-
- case syck_lvl_imap:
- syck_emitter_write( e, "}\n", 1 );
- break;
-
- default: break;
- }
-}
-
-/*
- * Fill markers table with emitter nodes in the
- * soon-to-be-emitted tree.
- */
-SYMID
-syck_emitter_mark_node( SyckEmitter *e, st_data_t n )
-{
- SYMID oid = 0;
- char *anchor_name = NULL;
-
- /*
- * Ensure markers table is initialized.
- */
- if ( e->markers == NULL )
- {
- e->markers = st_init_numtable();
- }
-
- /*
- * Markers table initially marks the string position of the
- * object. Doesn't yet create an anchor, simply notes the
- * position.
- */
- if ( ! st_lookup( e->markers, n, (st_data_t *)&oid ) )
- {
- /*
- * Store all markers
- */
- oid = e->markers->num_entries + 1;
- st_insert( e->markers, n, (st_data_t)oid );
- }
- else
- {
- if ( e->anchors == NULL )
- {
- e->anchors = st_init_numtable();
- }
-
- if ( ! st_lookup( e->anchors, (st_data_t)oid, (void *)&anchor_name ) )
- {
- int idx = 0;
- const char *anc = ( e->anchor_format == NULL ? DEFAULT_ANCHOR_FORMAT : e->anchor_format );
-
- /*
- * Second time hitting this object, let's give it an anchor
- */
- idx = (int)(e->anchors->num_entries + 1);
- anchor_name = S_ALLOC_N( char, strlen( anc ) + 10 );
- S_MEMZERO( anchor_name, char, strlen( anc ) + 10 );
- sprintf( anchor_name, anc, idx );
-
- /*
- * Insert into anchors table
- */
- st_insert( e->anchors, (st_data_t)oid, (st_data_t)anchor_name );
- }
- }
- return oid;
-}
-