Class: Ox::Builder
- Inherits:
-
Object
- Object
- Ox::Builder
- Defined in:
- ext/ox/builder.c,
ext/ox/builder.c
Overview
An XML builder.
Class Method Summary collapse
-
.file(filename, options) ⇒ Object
Creates a new Builder that will write to a file.
-
.io(io, options) ⇒ Object
Creates a new Builder that will write to an IO instance.
-
.new(options) ⇒ Object
Creates a new Builder that will write to a string that can be retrieved with the to_s() method.
Instance Method Summary collapse
-
#cdata(data) ⇒ Object
Adds a CDATA element to the XML string being formed.
-
#close ⇒ Object
Closes the all elements and the document.
-
#column ⇒ Object
Returns the current column in the output.
-
#comment(text) ⇒ Object
Adds a comment element to the XML string being formed.
-
#doctype(text) ⇒ Object
Adds a DOCTYPE element to the XML string being formed.
-
#element(name, attributes) ⇒ Object
Adds an element with the name and attributes provided.
-
#indent ⇒ Object
Returns the indentation level.
-
#indent=(indent) ⇒ Object
Sets the indentation level.
-
#instruct(decl, options) ⇒ Object
Adds the top level <?xml?> element.
-
#line ⇒ Object
Returns the current line in the output.
-
#pop ⇒ Object
Closes the current element.
-
#pos ⇒ Object
Returns the number of bytes written.
-
#raw(text) ⇒ Object
Adds the provided string directly to the XML without formatting or modifications.
-
#text(text) ⇒ Object
Adds a text element to the XML string being formed.
-
#to_s ⇒ Object
Returns the JSON document string in what ever state the construction is at.
-
#void_element(name, attributes) ⇒ Object
Adds an void element with the name and attributes provided.
Class Method Details
.file(filename, options) ⇒ Object
Creates a new Builder that will write to a file.
-
filename
(String) filename to write to -
options
- (Hash) formating options-
:indent
(Fixnum) indentaion level, negative values excludes terminating newline -
:size
(Fixnum) the initial size of the string buffer
-
352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 |
# File 'ext/ox/builder.c', line 352
static VALUE builder_file(int argc, VALUE *argv, VALUE self) {
Builder b = ALLOC(struct _builder);
int indent = ox_default_options.indent;
long buf_size = 0;
FILE *f;
if (1 > argc) {
rb_raise(ox_arg_error_class, "missing filename");
}
Check_Type(*argv, T_STRING);
if (NULL == (f = fopen(StringValuePtr(*argv), "w"))) {
xfree(b);
rb_raise(rb_eIOError, "%s\n", strerror(errno));
}
if (2 == argc) {
volatile VALUE v;
rb_check_type(argv[1], T_HASH);
if (Qnil != (v = rb_hash_lookup(argv[1], ox_indent_sym))) {
if (rb_cInteger != rb_obj_class(v)) {
rb_raise(ox_parse_error_class, ":indent must be a fixnum.\n");
}
indent = NUM2INT(v);
}
if (Qnil != (v = rb_hash_lookup(argv[1], ox_size_sym))) {
if (rb_cInteger != rb_obj_class(v)) {
rb_raise(ox_parse_error_class, ":size must be a fixnum.\n");
}
buf_size = NUM2LONG(v);
}
}
b->file = f;
init(b, fileno(f), indent, buf_size);
if (rb_block_given_p()) {
volatile VALUE rb = Data_Wrap_Struct(builder_class, NULL, builder_free, b);
rb_yield(rb);
bclose(b);
return Qnil;
} else {
return Data_Wrap_Struct(builder_class, NULL, builder_free, b);
}
}
|
.io(io, options) ⇒ Object
Creates a new Builder that will write to an IO instance.
-
io
(String) IO to write to -
options
- (Hash) formating options-
:indent
(Fixnum) indentaion level, negative values excludes terminating newline -
:size
(Fixnum) the initial size of the string buffer
-
405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 |
# File 'ext/ox/builder.c', line 405
static VALUE builder_io(int argc, VALUE *argv, VALUE self) {
Builder b = ALLOC(struct _builder);
int indent = ox_default_options.indent;
long buf_size = 0;
int fd;
volatile VALUE v;
if (1 > argc) {
rb_raise(ox_arg_error_class, "missing IO object");
}
if (!rb_respond_to(*argv, ox_fileno_id) || Qnil == (v = rb_funcall(*argv, ox_fileno_id, 0)) ||
0 == (fd = FIX2INT(v))) {
rb_raise(rb_eIOError, "expected an IO that has a fileno.");
}
if (2 == argc) {
volatile VALUE v;
rb_check_type(argv[1], T_HASH);
if (Qnil != (v = rb_hash_lookup(argv[1], ox_indent_sym))) {
if (rb_cInteger != rb_obj_class(v)) {
rb_raise(ox_parse_error_class, ":indent must be a fixnum.\n");
}
indent = NUM2INT(v);
}
if (Qnil != (v = rb_hash_lookup(argv[1], ox_size_sym))) {
if (rb_cInteger != rb_obj_class(v)) {
rb_raise(ox_parse_error_class, ":size must be a fixnum.\n");
}
buf_size = NUM2LONG(v);
}
}
b->file = NULL;
init(b, fd, indent, buf_size);
if (rb_block_given_p()) {
volatile VALUE rb = Data_Wrap_Struct(builder_class, NULL, builder_free, b);
rb_yield(rb);
bclose(b);
return Qnil;
} else {
return Data_Wrap_Struct(builder_class, NULL, builder_free, b);
}
}
|
.new(options) ⇒ Object
Creates a new Builder that will write to a string that can be retrieved with the to_s() method. If a block is given it is executed with a single parameter which is the builder instance. The return value is then the generated string.
-
options
- (Hash) formating options-
:indent
(Fixnum) indentaion level, negative values excludes terminating newline -
:size
(Fixnum) the initial size of the string buffer
-
306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 |
# File 'ext/ox/builder.c', line 306
static VALUE builder_new(int argc, VALUE *argv, VALUE self) {
Builder b = ALLOC(struct _builder);
int indent = ox_default_options.indent;
long buf_size = 0;
if (1 == argc) {
volatile VALUE v;
rb_check_type(*argv, T_HASH);
if (Qnil != (v = rb_hash_lookup(*argv, ox_indent_sym))) {
if (rb_cInteger != rb_obj_class(v)) {
rb_raise(ox_parse_error_class, ":indent must be a fixnum.\n");
}
indent = NUM2INT(v);
}
if (Qnil != (v = rb_hash_lookup(*argv, ox_size_sym))) {
if (rb_cInteger != rb_obj_class(v)) {
rb_raise(ox_parse_error_class, ":size must be a fixnum.\n");
}
buf_size = NUM2LONG(v);
}
}
b->file = NULL;
init(b, 0, indent, buf_size);
if (rb_block_given_p()) {
volatile VALUE rb = Data_Wrap_Struct(builder_class, NULL, builder_free, b);
rb_yield(rb);
bclose(b);
return to_s(b);
} else {
return Data_Wrap_Struct(builder_class, NULL, builder_free, b);
}
}
|
Instance Method Details
#cdata(data) ⇒ Object
Adds a CDATA element to the XML string being formed.
-
data
- (String) contents of the CDATA element
699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 |
# File 'ext/ox/builder.c', line 699
static VALUE builder_cdata(VALUE self, VALUE data) {
Builder b = (Builder)DATA_PTR(self);
volatile VALUE v = data;
const char *str;
const char *s;
const char *end;
int len;
v = rb_String(v);
str = StringValuePtr(v);
len = (int)RSTRING_LEN(v);
s = str;
end = str + len;
i_am_a_child(b, false);
append_indent(b);
buf_append_string(&b->buf, "<![CDATA[", 9);
b->col += 9;
b->pos += 9;
buf_append_string(&b->buf, str, len);
b->col += len;
s = strchr(s, '\n');
while (NULL != s) {
b->line++;
b->col = end - s;
s = strchr(s + 1, '\n');
}
b->pos += len;
buf_append_string(&b->buf, "]]>", 3);
b->col += 3;
b->pos += 3;
return Qnil;
}
|
#close ⇒ Object
Closes the all elements and the document.
836 837 838 839 840 |
# File 'ext/ox/builder.c', line 836
static VALUE builder_close(VALUE self) {
bclose((Builder)DATA_PTR(self));
return Qnil;
}
|
#column ⇒ Object
Returns the current column in the output. The first character in a line is at column 1.
787 788 789 |
# File 'ext/ox/builder.c', line 787
static VALUE builder_column(VALUE self) {
return LONG2NUM(((Builder)DATA_PTR(self))->col);
}
|
#comment(text) ⇒ Object
Adds a comment element to the XML string being formed.
-
text
- (String) contents of the comment
627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 |
# File 'ext/ox/builder.c', line 627
static VALUE builder_comment(VALUE self, VALUE text) {
Builder b = (Builder)DATA_PTR(self);
rb_check_type(text, T_STRING);
i_am_a_child(b, false);
append_indent(b);
buf_append_string(&b->buf, "<!--", 4);
b->col += 5;
b->pos += 5;
append_string(b, StringValuePtr(text), RSTRING_LEN(text), xml_element_chars, false);
buf_append_string(&b->buf, "-->", 3);
b->col += 5;
b->pos += 5;
return Qnil;
}
|
#doctype(text) ⇒ Object
Adds a DOCTYPE element to the XML string being formed.
-
text
- (String) contents of the doctype
649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 |
# File 'ext/ox/builder.c', line 649
static VALUE builder_doctype(VALUE self, VALUE text) {
Builder b = (Builder)DATA_PTR(self);
rb_check_type(text, T_STRING);
i_am_a_child(b, false);
append_indent(b);
buf_append_string(&b->buf, "<!DOCTYPE ", 10);
b->col += 10;
b->pos += 10;
append_string(b, StringValuePtr(text), RSTRING_LEN(text), xml_element_chars, false);
buf_append(&b->buf, '>');
b->col++;
b->pos++;
return Qnil;
}
|
#element(name, attributes) ⇒ Object
Adds an element with the name and attributes provided. If a block is given then on closing of the block a pop() is called.
-
name
- (String) name of the element -
attributes
- (Hash) of the element
526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 |
# File 'ext/ox/builder.c', line 526
static VALUE builder_element(int argc, VALUE *argv, VALUE self) {
Builder b = (Builder)DATA_PTR(self);
Element e;
const char *name;
long len;
if (1 > argc) {
rb_raise(ox_arg_error_class, "missing element name");
}
i_am_a_child(b, false);
append_indent(b);
b->depth++;
if (MAX_DEPTH <= b->depth) {
rb_raise(ox_arg_error_class, "XML too deeply nested");
}
switch (rb_type(*argv)) {
case T_STRING:
name = StringValuePtr(*argv);
len = RSTRING_LEN(*argv);
break;
case T_SYMBOL:
name = rb_id2name(SYM2ID(*argv));
len = strlen(name);
break;
default: rb_raise(ox_arg_error_class, "expected a Symbol or String for an element name"); break;
}
e = &b->stack[b->depth];
if (sizeof(e->buf) <= (size_t)len) {
e->name = strdup(name);
*e->buf = '\0';
} else {
strcpy(e->buf, name);
e->name = e->buf;
}
e->len = len;
e->has_child = false;
e->non_text_child = false;
buf_append(&b->buf, '<');
b->col++;
b->pos++;
append_string(b, e->name, len, xml_element_chars, false);
if (1 < argc && T_HASH == rb_type(argv[1])) {
rb_hash_foreach(argv[1], append_attr, (VALUE)b);
}
// Do not close with > or /> yet. That is done with i_am_a_child() or pop().
if (rb_block_given_p()) {
rb_yield(self);
pop(b);
}
return Qnil;
}
|
#indent ⇒ Object
Returns the indentation level
795 796 797 |
# File 'ext/ox/builder.c', line 795
static VALUE builder_get_indent(VALUE self) {
return INT2NUM(((Builder)DATA_PTR(self))->indent);
}
|
#indent=(indent) ⇒ Object
Sets the indentation level
-
indent
(Fixnum) indentaion level, negative values excludes terminating newline
805 806 807 808 809 810 811 812 |
# File 'ext/ox/builder.c', line 805
static VALUE builder_set_indent(VALUE self, VALUE indent) {
if (rb_cInteger != rb_obj_class(indent)) {
rb_raise(ox_parse_error_class, "indent must be a fixnum.\n");
}
((Builder)DATA_PTR(self))->indent = NUM2INT(indent);
return Qnil;
}
|
#instruct(decl, options) ⇒ Object
Adds the top level <?xml?> element.
-
decl
- (String) ‘xml’ expected -
options
- (Hash) version or encoding
456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 |
# File 'ext/ox/builder.c', line 456
static VALUE builder_instruct(int argc, VALUE *argv, VALUE self) {
Builder b = (Builder)DATA_PTR(self);
i_am_a_child(b, false);
append_indent(b);
if (0 == argc) {
buf_append_string(&b->buf, "<?xml?>", 7);
b->col += 7;
b->pos += 7;
} else {
volatile VALUE v;
buf_append_string(&b->buf, "<?", 2);
b->col += 2;
b->pos += 2;
append_sym_str(b, *argv);
if (1 < argc && rb_cHash == rb_obj_class(argv[1])) {
int len;
if (Qnil != (v = rb_hash_lookup(argv[1], ox_version_sym))) {
if (rb_cString != rb_obj_class(v)) {
rb_raise(ox_parse_error_class, ":version must be a Symbol.\n");
}
len = (int)RSTRING_LEN(v);
buf_append_string(&b->buf, " version=\"", 10);
buf_append_string(&b->buf, StringValuePtr(v), len);
buf_append(&b->buf, '"');
b->col += len + 11;
b->pos += len + 11;
}
if (Qnil != (v = rb_hash_lookup(argv[1], ox_encoding_sym))) {
if (rb_cString != rb_obj_class(v)) {
rb_raise(ox_parse_error_class, ":encoding must be a Symbol.\n");
}
len = (int)RSTRING_LEN(v);
buf_append_string(&b->buf, " encoding=\"", 11);
buf_append_string(&b->buf, StringValuePtr(v), len);
buf_append(&b->buf, '"');
b->col += len + 12;
b->pos += len + 12;
strncpy(b->encoding, StringValuePtr(v), sizeof(b->encoding));
b->encoding[sizeof(b->encoding) - 1] = '\0';
}
if (Qnil != (v = rb_hash_lookup(argv[1], ox_standalone_sym))) {
if (rb_cString != rb_obj_class(v)) {
rb_raise(ox_parse_error_class, ":standalone must be a Symbol.\n");
}
len = (int)RSTRING_LEN(v);
buf_append_string(&b->buf, " standalone=\"", 13);
buf_append_string(&b->buf, StringValuePtr(v), len);
buf_append(&b->buf, '"');
b->col += len + 14;
b->pos += len + 14;
}
}
buf_append_string(&b->buf, "?>", 2);
b->col += 2;
b->pos += 2;
}
return Qnil;
}
|
#line ⇒ Object
Returns the current line in the output. The first line is line 1.
778 779 780 |
# File 'ext/ox/builder.c', line 778
static VALUE builder_line(VALUE self) {
return LONG2NUM(((Builder)DATA_PTR(self))->line);
}
|
#pop ⇒ Object
Closes the current element.
826 827 828 829 830 |
# File 'ext/ox/builder.c', line 826
static VALUE builder_pop(VALUE self) {
pop((Builder)DATA_PTR(self));
return Qnil;
}
|
#pos ⇒ Object
Returns the number of bytes written.
818 819 820 |
# File 'ext/ox/builder.c', line 818
static VALUE builder_pos(VALUE self) {
return LONG2NUM(((Builder)DATA_PTR(self))->pos);
}
|
#raw(text) ⇒ Object
Adds the provided string directly to the XML without formatting or modifications.
-
text
- (String) contents to be added
739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 |
# File 'ext/ox/builder.c', line 739
static VALUE builder_raw(VALUE self, VALUE text) {
Builder b = (Builder)DATA_PTR(self);
volatile VALUE v = text;
const char *str;
const char *s;
const char *end;
int len;
v = rb_String(v);
str = StringValuePtr(v);
len = (int)RSTRING_LEN(v);
s = str;
end = str + len;
i_am_a_child(b, true);
buf_append_string(&b->buf, str, len);
b->col += len;
s = strchr(s, '\n');
while (NULL != s) {
b->line++;
b->col = end - s;
s = strchr(s + 1, '\n');
}
b->pos += len;
return Qnil;
}
|
#text(text) ⇒ Object
Adds a text element to the XML string being formed.
-
text
- (String) contents of the text field -
strip_invalid_chars
- [true|false] strips any characters invalid for XML, defaults to false
672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 |
# File 'ext/ox/builder.c', line 672
static VALUE builder_text(int argc, VALUE *argv, VALUE self) {
Builder b = (Builder)DATA_PTR(self);
volatile VALUE v;
volatile VALUE strip_invalid_chars;
if ((0 == argc) || (argc > 2)) {
rb_raise(rb_eArgError, "wrong number of arguments (given %d, expected 1..2)", argc);
}
v = argv[0];
if (2 == argc) {
strip_invalid_chars = argv[1];
} else {
strip_invalid_chars = Qfalse;
}
v = rb_String(v);
i_am_a_child(b, true);
append_string(b, StringValuePtr(v), RSTRING_LEN(v), xml_element_chars, RTEST(strip_invalid_chars));
return Qnil;
}
|
#to_s ⇒ Object
Returns the JSON document string in what ever state the construction is at.
770 771 772 |
# File 'ext/ox/builder.c', line 770
static VALUE builder_to_s(VALUE self) {
return to_s((Builder)DATA_PTR(self));
}
|
#void_element(name, attributes) ⇒ Object
Adds an void element with the name and attributes provided.
-
name
- (String) name of the element -
attributes
- (Hash) of the element
586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 |
# File 'ext/ox/builder.c', line 586
static VALUE builder_void_element(int argc, VALUE *argv, VALUE self) {
Builder b = (Builder)DATA_PTR(self);
const char *name;
long len;
if (1 > argc) {
rb_raise(ox_arg_error_class, "missing element name");
}
i_am_a_child(b, false);
append_indent(b);
switch (rb_type(*argv)) {
case T_STRING:
name = StringValuePtr(*argv);
len = RSTRING_LEN(*argv);
break;
case T_SYMBOL:
name = rb_id2name(SYM2ID(*argv));
len = strlen(name);
break;
default: rb_raise(ox_arg_error_class, "expected a Symbol or String for an element name"); break;
}
buf_append(&b->buf, '<');
b->col++;
b->pos++;
append_string(b, name, len, xml_element_chars, false);
if (1 < argc && T_HASH == rb_type(argv[1])) {
rb_hash_foreach(argv[1], append_attr, (VALUE)b);
}
buf_append_string(&b->buf, ">", 1);
b->col++;
;
b->pos++;
return Qnil;
}
|