Class: CommonMarker::Node
- Inherits:
-
Object
- Object
- CommonMarker::Node
- Includes:
- Inspect, Enumerable
- Defined in:
- lib/commonmarker/node.rb,
lib/commonmarker/node/inspect.rb,
ext/commonmarker/commonmarker.c
Defined Under Namespace
Modules: Inspect
Constant Summary
Constants included from Inspect
Class Method Summary collapse
-
.markdown_to_html(rb_text, rb_options, rb_extensions) ⇒ Object
Internal: Parses a Markdown string into an HTML string.
-
.new(type) ⇒ Object
Internal: Creates a node based on a node type.
-
.parse_document(rb_text, rb_len, rb_options, rb_extensions) ⇒ Object
Internal: Parses a Markdown string into a document.
Instance Method Summary collapse
-
#_render_commonmark(rb_options) ⇒ Object
Internal: Convert the node to a CommonMark string.
-
#_render_html(rb_options, rb_extensions) ⇒ Object
Internal: Convert the node to an HTML string.
-
#_render_plaintext(rb_options) ⇒ Object
Internal: Convert the node to a plain textstring.
-
#append_child(child) ⇒ Object
Public: Inserts a node as the last child of the current node.
-
#delete ⇒ Object
Internal: Unlinks the node from the tree (fixing pointers in parents and siblings appropriately).
-
#each(&block) ⇒ Object
Public: Iterate over the children (if any) of the current pointer.
-
#each_child(&block) ⇒ Object
Deprecated: Please use ‘each` instead.
-
#fence_info ⇒ Object
Public: Gets the fence info of the current node (must be a ‘:code_block`).
-
#fence_info=(info) ⇒ Object
Public: Sets the fence info of the current node (must be a ‘:code_block`).
-
#first_child ⇒ Object
Public: Fetches the first child of the node.
-
#header_level ⇒ Object
Public: Gets the header level of the current node (must be a ‘:header`).
-
#header_level=(level) ⇒ Object
Public: Sets the header level of the current node (must be a ‘:header`).
-
#html_escape_href(rb_text) ⇒ Object
Internal: Escapes href URLs safely.
-
#html_escape_html(rb_text) ⇒ Object
Internal: Escapes HTML content safely.
-
#insert_after(sibling) ⇒ Object
Public: Inserts a node as a sibling after the current node.
-
#insert_before(sibling) ⇒ Object
Public: Inserts a node as a sibling before the current node.
-
#last_child ⇒ Object
Public: Fetches the first child of the current node.
-
#list_start ⇒ Object
Public: Gets the starting number the current node (must be an ‘:ordered_list`).
-
#list_start=(start) ⇒ Object
Public: Sets the starting number of the current node (must be an ‘:ordered_list`).
-
#list_tight ⇒ Object
Public: Gets the tight status the current node (must be a ‘:list`).
-
#list_tight=(tight) ⇒ Object
Public: Sets the tight status of the current node (must be a ‘:list`).
-
#list_type ⇒ Object
Public: Gets the list type of the current node (must be a ‘:list`).
-
#list_type=(list_type) ⇒ Object
Public: Sets the list type of the current node (must be a ‘:list`).
-
#next ⇒ Object
Public: Fetches the next sibling of the node.
-
#parent ⇒ Object
Public: Fetches the parent of the current node.
-
#prepend_child(child) ⇒ Object
Public: Inserts a node as the first child of the current node.
-
#previous ⇒ Object
Public: Fetches the previous sibling of the current node.
-
#sourcepos ⇒ Object
Public: Fetches the sourcepos of the node.
-
#string_content ⇒ Object
Public: Fetch the string contents of the node.
-
#string_content=(s) ⇒ Object
Public: Sets the string content of the node.
- #table_alignments ⇒ Object
-
#title ⇒ Object
Public: Gets the title of the current node (must be a ‘:link` or `:image`).
-
#title=(title) ⇒ Object
Public: Sets the title of the current node (must be a ‘:link` or `:image`).
-
#to_commonmark(options = :DEFAULT) ⇒ Object
Public: Convert the node to a CommonMark string.
-
#to_html(options = :DEFAULT, extensions = []) ⇒ Object
Public: Convert the node to an HTML string.
-
#to_plaintext(options = :DEFAULT) ⇒ Object
Public: Convert the node to a plain text string.
-
#type ⇒ Object
Public: Fetches the list type of the node.
-
#type_string ⇒ Object
Public: Returns the type of the current pointer as a string.
-
#url ⇒ Object
Public: Gets the URL of the current node (must be a ‘:link` or `:image`).
-
#url=(url) ⇒ Object
Public: Sets the URL of the current node (must be a ‘:link` or `:image`).
-
#walk {|_self| ... } ⇒ Object
Public: An iterator that “walks the tree,” descending into children recursively.
Methods included from Inspect
Class Method Details
.markdown_to_html(rb_text, rb_options, rb_extensions) ⇒ Object
Internal: Parses a Markdown string into an HTML string.
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# File 'ext/commonmarker/commonmarker.c', line 150
static VALUE rb_markdown_to_html(VALUE self, VALUE rb_text, VALUE rb_options, VALUE rb_extensions) {
char *str, *html;
int len;
cmark_parser *parser;
cmark_node *doc;
Check_Type(rb_text, T_STRING);
Check_Type(rb_options, T_FIXNUM);
parser = prepare_parser(rb_options, rb_extensions, cmark_get_arena_mem_allocator());
str = (char *)RSTRING_PTR(rb_text);
len = RSTRING_LEN(rb_text);
cmark_parser_feed(parser, str, len);
doc = cmark_parser_finish(parser);
if (doc == NULL) {
cmark_arena_reset();
rb_raise(rb_mNodeError, "error parsing document");
}
cmark_mem *default_mem = cmark_get_default_mem_allocator();
html = cmark_render_html_with_mem(doc, FIX2INT(rb_options), parser->syntax_extensions, default_mem);
cmark_arena_reset();
VALUE ruby_html = rb_str_new2(html);
default_mem->free(html);
return ruby_html;
}
|
.new(type) ⇒ Object
Internal: Creates a node based on a node type.
type - A Symbol representing the node to be created. Must be one of the following:
-
‘:document`
-
‘:blockquote`
-
‘:list`
-
‘:list_item`
-
‘:code_block`
-
‘:html`
-
‘:paragraph`
-
‘:header`
-
‘:hrule`
-
‘:text`
-
‘:softbreak`
-
‘:linebreak`
-
‘:code`
-
‘:inline_html`
-
‘:emph`
-
‘:strong`
-
‘:link`
-
‘:image`
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# File 'ext/commonmarker/commonmarker.c', line 204
static VALUE rb_node_new(VALUE self, VALUE type) {
cmark_node_type node_type = 0;
cmark_node *node;
Check_Type(type, T_SYMBOL);
if (type == sym_document)
node_type = CMARK_NODE_DOCUMENT;
else if (type == sym_blockquote)
node_type = CMARK_NODE_BLOCK_QUOTE;
else if (type == sym_list)
node_type = CMARK_NODE_LIST;
else if (type == sym_list_item)
node_type = CMARK_NODE_ITEM;
else if (type == sym_code_block)
node_type = CMARK_NODE_CODE_BLOCK;
else if (type == sym_html)
node_type = CMARK_NODE_HTML;
else if (type == sym_paragraph)
node_type = CMARK_NODE_PARAGRAPH;
else if (type == sym_header)
node_type = CMARK_NODE_HEADER;
else if (type == sym_hrule)
node_type = CMARK_NODE_HRULE;
else if (type == sym_text)
node_type = CMARK_NODE_TEXT;
else if (type == sym_softbreak)
node_type = CMARK_NODE_SOFTBREAK;
else if (type == sym_linebreak)
node_type = CMARK_NODE_LINEBREAK;
else if (type == sym_code)
node_type = CMARK_NODE_CODE;
else if (type == sym_inline_html)
node_type = CMARK_NODE_INLINE_HTML;
else if (type == sym_emph)
node_type = CMARK_NODE_EMPH;
else if (type == sym_strong)
node_type = CMARK_NODE_STRONG;
else if (type == sym_link)
node_type = CMARK_NODE_LINK;
else if (type == sym_image)
node_type = CMARK_NODE_IMAGE;
else
rb_raise(rb_mNodeError, "invalid node of type %d", node_type);
node = cmark_node_new(node_type);
if (node == NULL) {
rb_raise(rb_mNodeError, "could not create node of type %d", node_type);
}
return rb_node_to_value(node);
}
|
.parse_document(rb_text, rb_len, rb_options, rb_extensions) ⇒ Object
Internal: Parses a Markdown string into a document.
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# File 'ext/commonmarker/commonmarker.c', line 261
static VALUE rb_parse_document(VALUE self, VALUE rb_text, VALUE rb_len,
VALUE rb_options, VALUE rb_extensions) {
char *text;
int len, options;
cmark_parser *parser;
cmark_node *doc;
Check_Type(rb_text, T_STRING);
Check_Type(rb_len, T_FIXNUM);
Check_Type(rb_options, T_FIXNUM);
parser = prepare_parser(rb_options, rb_extensions, cmark_get_default_mem_allocator());
text = (char *)RSTRING_PTR(rb_text);
len = FIX2INT(rb_len);
options = FIX2INT(rb_options);
cmark_parser_feed(parser, text, len);
doc = cmark_parser_finish(parser);
if (doc == NULL) {
rb_raise(rb_mNodeError, "error parsing document");
}
cmark_parser_free(parser);
return rb_node_to_value(doc);
}
|
Instance Method Details
#_render_commonmark(rb_options) ⇒ Object
Internal: Convert the node to a CommonMark string.
Returns a String.
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# File 'ext/commonmarker/commonmarker.c', line 562
static VALUE rb_render_commonmark(VALUE n, VALUE rb_options) {
int options;
cmark_node *node;
Check_Type(rb_options, T_FIXNUM);
options = FIX2INT(rb_options);
Data_Get_Struct(n, cmark_node, node);
char *cmark = cmark_render_commonmark(node, options, 120);
VALUE ruby_cmark = rb_str_new2(cmark);
free(cmark);
return ruby_cmark;
}
|
#_render_html(rb_options, rb_extensions) ⇒ Object
Internal: Convert the node to an HTML string.
Returns a String.
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# File 'ext/commonmarker/commonmarker.c', line 515
static VALUE rb_render_html(VALUE n, VALUE rb_options, VALUE rb_extensions) {
int options, extensions_len;
VALUE rb_ext_name;
int i;
cmark_node *node;
cmark_llist *extensions = NULL;
cmark_mem *mem = cmark_get_default_mem_allocator();
Check_Type(rb_options, T_FIXNUM);
Check_Type(rb_extensions, T_ARRAY);
options = FIX2INT(rb_options);
extensions_len = RARRAY_LEN(rb_extensions);
Data_Get_Struct(n, cmark_node, node);
for (i = 0; i < extensions_len; ++i) {
rb_ext_name = RARRAY_PTR(rb_extensions)[i];
if (!SYMBOL_P(rb_ext_name)) {
cmark_llist_free(mem, extensions);
rb_raise(rb_eTypeError, "extension names should be Symbols; got a %"PRIsVALUE"", rb_obj_class(rb_ext_name));
}
cmark_syntax_extension *syntax_extension =
cmark_find_syntax_extension(rb_id2name(SYM2ID(rb_ext_name)));
if (!syntax_extension) {
cmark_llist_free(mem, extensions);
rb_raise(rb_eArgError, "extension %s not found\n", rb_id2name(SYM2ID(rb_ext_name)));
}
extensions = cmark_llist_append(mem, extensions, syntax_extension);
}
char *html = cmark_render_html(node, options, extensions);
VALUE ruby_html = rb_str_new2(html);
cmark_llist_free(mem, extensions);
free(html);
return ruby_html;
}
|
#_render_plaintext(rb_options) ⇒ Object
Internal: Convert the node to a plain textstring.
Returns a String.
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# File 'ext/commonmarker/commonmarker.c', line 581
static VALUE rb_render_plaintext(VALUE n, VALUE rb_options) {
int options;
cmark_node *node;
Check_Type(rb_options, T_FIXNUM);
options = FIX2INT(rb_options);
Data_Get_Struct(n, cmark_node, node);
char *text = cmark_render_plaintext(node, options, 120);
VALUE ruby_text = rb_str_new2(text);
free(text);
return ruby_text;
}
|
#append_child(child) ⇒ Object
Public: Inserts a node as the last child of the current node.
child - A child CommonMarker::Node to insert.
Returns ‘true` if successful. Raises NodeError if the node can’t be inserted.
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# File 'ext/commonmarker/commonmarker.c', line 650
static VALUE rb_node_append_child(VALUE self, VALUE child) {
cmark_node *node1, *node2;
Data_Get_Struct(self, cmark_node, node1);
Data_Get_Struct(child, cmark_node, node2);
if (!cmark_node_append_child(node1, node2)) {
rb_raise(rb_mNodeError, "could not append child");
}
rb_parent_added(child);
return Qtrue;
}
|
#delete ⇒ Object
Internal: Unlinks the node from the tree (fixing pointers in parents and siblings appropriately).
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# File 'ext/commonmarker/commonmarker.c', line 451 static VALUE rb_node_unlink(VALUE self) { cmark_node *node; Data_Get_Struct(self, cmark_node, node); cmark_node_unlink(node); rb_parent_removed(self); return Qnil; } |
#each(&block) ⇒ Object
Public: Iterate over the children (if any) of the current pointer.
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# File 'lib/commonmarker/node.rb', line 52 def each(&block) return enum_for(:each) unless block_given? child = first_child while child nextchild = child.next yield child child = nextchild end end |
#each_child(&block) ⇒ Object
Deprecated: Please use ‘each` instead
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# File 'lib/commonmarker/node.rb', line 64 def each_child(&block) warn '[DEPRECATION] `each_child` is deprecated. Please use `each` instead.' each(&block) end |
#fence_info ⇒ Object
Public: Gets the fence info of the current node (must be a ‘:code_block`).
Returns a String representing the fence info. Raises a NodeError if the fence info can’t be retrieved.
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# File 'ext/commonmarker/commonmarker.c', line 971
static VALUE rb_node_get_fence_info(VALUE self) {
const char *fence_info;
cmark_node *node;
Data_Get_Struct(self, cmark_node, node);
fence_info = cmark_node_get_fence_info(node);
if (fence_info == NULL) {
rb_raise(rb_mNodeError, "could not get fence_info");
}
return rb_str_new2(fence_info);
}
|
#fence_info=(info) ⇒ Object
Public: Sets the fence info of the current node (must be a ‘:code_block`).
info - A String representing the new fence info
Raises a NodeError if the fence info can’t be set.
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# File 'ext/commonmarker/commonmarker.c', line 992
static VALUE rb_node_set_fence_info(VALUE self, VALUE info) {
char *text;
cmark_node *node;
Check_Type(info, T_STRING);
Data_Get_Struct(self, cmark_node, node);
text = StringValueCStr(info);
if (!cmark_node_set_fence_info(node, text)) {
rb_raise(rb_mNodeError, "could not set fence_info");
}
return Qnil;
}
|
#first_child ⇒ Object
Public: Fetches the first child of the node.
Returns a CommonMarker::Node if a child exists, ‘nil` otherise.
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# File 'ext/commonmarker/commonmarker.c', line 466 static VALUE rb_node_first_child(VALUE self) { cmark_node *node, *child; Data_Get_Struct(self, cmark_node, node); child = cmark_node_first_child(node); return rb_node_to_value(child); } |
#header_level ⇒ Object
Public: Gets the header level of the current node (must be a ‘:header`).
Returns a Number representing the header level. Raises a NodeError if the header level can’t be retrieved.
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# File 'ext/commonmarker/commonmarker.c', line 792
static VALUE rb_node_get_header_level(VALUE self) {
int header_level;
cmark_node *node;
Data_Get_Struct(self, cmark_node, node);
header_level = cmark_node_get_header_level(node);
if (header_level == 0) {
rb_raise(rb_mNodeError, "could not get header_level");
}
return INT2NUM(header_level);
}
|
#header_level=(level) ⇒ Object
Public: Sets the header level of the current node (must be a ‘:header`).
level - A Number representing the new header level
Raises a NodeError if the header level can’t be set.
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# File 'ext/commonmarker/commonmarker.c', line 813
static VALUE rb_node_set_header_level(VALUE self, VALUE level) {
int l;
cmark_node *node;
Check_Type(level, T_FIXNUM);
Data_Get_Struct(self, cmark_node, node);
l = FIX2INT(level);
if (!cmark_node_set_header_level(node, l)) {
rb_raise(rb_mNodeError, "could not set header_level");
}
return Qnil;
}
|
#html_escape_href(rb_text) ⇒ Object
Internal: Escapes href URLs safely.
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# File 'ext/commonmarker/commonmarker.c', line 1036
static VALUE rb_html_escape_href(VALUE self, VALUE rb_text) {
char *result;
cmark_node *node;
Check_Type(rb_text, T_STRING);
Data_Get_Struct(self, cmark_node, node);
cmark_mem *mem = cmark_node_mem(node);
cmark_strbuf buf = CMARK_BUF_INIT(mem);
if (houdini_escape_href(&buf, (const uint8_t *)RSTRING_PTR(rb_text),
RSTRING_LEN(rb_text))) {
result = (char *)cmark_strbuf_detach(&buf);
return rb_str_new2(result);
}
return rb_text;
}
|
#html_escape_html(rb_text) ⇒ Object
Internal: Escapes HTML content safely.
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# File 'ext/commonmarker/commonmarker.c', line 1056
static VALUE rb_html_escape_html(VALUE self, VALUE rb_text) {
char *result;
cmark_node *node;
Check_Type(rb_text, T_STRING);
Data_Get_Struct(self, cmark_node, node);
cmark_mem *mem = cmark_node_mem(node);
cmark_strbuf buf = CMARK_BUF_INIT(mem);
if (houdini_escape_html0(&buf, (const uint8_t *)RSTRING_PTR(rb_text),
RSTRING_LEN(rb_text), 0)) {
result = (char *)cmark_strbuf_detach(&buf);
return rb_str_new2(result);
}
return rb_text;
}
|
#insert_after(sibling) ⇒ Object
Public: Inserts a node as a sibling after the current node.
sibling - A sibling CommonMarker::Node to insert.
Returns ‘true` if successful. Raises NodeError if the node can’t be inserted.
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# File 'ext/commonmarker/commonmarker.c', line 604
static VALUE rb_node_insert_after(VALUE self, VALUE sibling) {
cmark_node *node1, *node2;
Data_Get_Struct(self, cmark_node, node1);
Data_Get_Struct(sibling, cmark_node, node2);
if (!cmark_node_insert_after(node1, node2)) {
rb_raise(rb_mNodeError, "could not insert after");
}
rb_parent_added(sibling);
return Qtrue;
}
|
#insert_before(sibling) ⇒ Object
Public: Inserts a node as a sibling before the current node.
sibling - A sibling CommonMarker::Node to insert.
Returns ‘true` if successful. Raises NodeError if the node can’t be inserted.
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# File 'ext/commonmarker/commonmarker.c', line 496
static VALUE rb_node_insert_before(VALUE self, VALUE sibling) {
cmark_node *node1, *node2;
Data_Get_Struct(self, cmark_node, node1);
Data_Get_Struct(sibling, cmark_node, node2);
if (!cmark_node_insert_before(node1, node2)) {
rb_raise(rb_mNodeError, "could not insert before");
}
rb_parent_added(sibling);
return Qtrue;
}
|
#last_child ⇒ Object
Public: Fetches the first child of the current node.
Returns a CommonMarker::Node if a child exists, ‘nil` otherise.
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# File 'ext/commonmarker/commonmarker.c', line 669 static VALUE rb_node_last_child(VALUE self) { cmark_node *node, *child; Data_Get_Struct(self, cmark_node, node); child = cmark_node_last_child(node); return rb_node_to_value(child); } |
#list_start ⇒ Object
Public: Gets the starting number the current node (must be an ‘:ordered_list`).
Returns a Number representing the starting number. Raises a NodeError if the starting number can’t be retrieved.
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# File 'ext/commonmarker/commonmarker.c', line 889
static VALUE rb_node_get_list_start(VALUE self) {
cmark_node *node;
Data_Get_Struct(self, cmark_node, node);
if (cmark_node_get_type(node) != CMARK_NODE_LIST ||
cmark_node_get_list_type(node) != CMARK_ORDERED_LIST) {
rb_raise(rb_mNodeError, "can't get list_start for non-ordered list %d",
cmark_node_get_list_type(node));
}
return INT2NUM(cmark_node_get_list_start(node));
}
|
#list_start=(start) ⇒ Object
Public: Sets the starting number of the current node (must be an ‘:ordered_list`).
level - A Number representing the new starting number
Raises a NodeError if the starting number can’t be set.
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# File 'ext/commonmarker/commonmarker.c', line 910
static VALUE rb_node_set_list_start(VALUE self, VALUE start) {
int s;
cmark_node *node;
Check_Type(start, T_FIXNUM);
Data_Get_Struct(self, cmark_node, node);
s = FIX2INT(start);
if (!cmark_node_set_list_start(node, s)) {
rb_raise(rb_mNodeError, "could not set list_start");
}
return Qnil;
}
|
#list_tight ⇒ Object
Public: Gets the tight status the current node (must be a ‘:list`).
Returns a ‘true` if the list is tight, `false` otherwise. Raises a NodeError if the starting number can’t be retrieved.
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# File 'ext/commonmarker/commonmarker.c', line 931
static VALUE rb_node_get_list_tight(VALUE self) {
int flag;
cmark_node *node;
Data_Get_Struct(self, cmark_node, node);
if (cmark_node_get_type(node) != CMARK_NODE_LIST) {
rb_raise(rb_mNodeError, "can't get list_tight for non-list");
}
flag = cmark_node_get_list_tight(node);
return flag ? Qtrue : Qfalse;
}
|
#list_tight=(tight) ⇒ Object
Public: Sets the tight status of the current node (must be a ‘:list`).
tight - A Boolean representing the new tightness
Raises a NodeError if the tightness can’t be set.
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# File 'ext/commonmarker/commonmarker.c', line 952
static VALUE rb_node_set_list_tight(VALUE self, VALUE tight) {
int t;
cmark_node *node;
Data_Get_Struct(self, cmark_node, node);
t = RTEST(tight);
if (!cmark_node_set_list_tight(node, t)) {
rb_raise(rb_mNodeError, "could not set list_tight");
}
return Qnil;
}
|
#list_type ⇒ Object
Public: Gets the list type of the current node (must be a ‘:list`).
Returns a Symbol. Raises a NodeError if the title can’t be retrieved.
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# File 'ext/commonmarker/commonmarker.c', line 834
static VALUE rb_node_get_list_type(VALUE self) {
int list_type;
cmark_node *node;
VALUE symbol;
Data_Get_Struct(self, cmark_node, node);
list_type = cmark_node_get_list_type(node);
if (list_type == CMARK_BULLET_LIST) {
symbol = sym_bullet_list;
} else if (list_type == CMARK_ORDERED_LIST) {
symbol = sym_ordered_list;
} else {
rb_raise(rb_mNodeError, "could not get list_type");
}
return symbol;
}
|
#list_type=(list_type) ⇒ Object
Public: Sets the list type of the current node (must be a ‘:list`).
level - A Symbol representing the new list type
Raises a NodeError if the list type can’t be set.
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# File 'ext/commonmarker/commonmarker.c', line 860
static VALUE rb_node_set_list_type(VALUE self, VALUE list_type) {
int type = 0;
cmark_node *node;
Check_Type(list_type, T_SYMBOL);
Data_Get_Struct(self, cmark_node, node);
if (list_type == sym_bullet_list) {
type = CMARK_BULLET_LIST;
} else if (list_type == sym_ordered_list) {
type = CMARK_ORDERED_LIST;
} else {
rb_raise(rb_mNodeError, "invalid list_type");
}
if (!cmark_node_set_list_type(node, type)) {
rb_raise(rb_mNodeError, "could not set list_type");
}
return Qnil;
}
|
#next ⇒ Object
Public: Fetches the next sibling of the node.
Returns a CommonMarker::Node if a sibling exists, ‘nil` otherwise.
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# File 'ext/commonmarker/commonmarker.c', line 479
static VALUE rb_node_next(VALUE self) {
cmark_node *node, *next;
Data_Get_Struct(self, cmark_node, node);
next = cmark_node_next(node);
return rb_node_to_value(next);
}
|
#parent ⇒ Object
Public: Fetches the parent of the current node.
Returns a CommonMarker::Node if a parent exists, ‘nil` otherise.
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# File 'ext/commonmarker/commonmarker.c', line 682 static VALUE rb_node_parent(VALUE self) { cmark_node *node, *parent; Data_Get_Struct(self, cmark_node, node); parent = cmark_node_parent(node); return rb_node_to_value(parent); } |
#prepend_child(child) ⇒ Object
Public: Inserts a node as the first child of the current node.
child - A child CommonMarker::Node to insert.
Returns ‘true` if successful. Raises NodeError if the node can’t be inserted.
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# File 'ext/commonmarker/commonmarker.c', line 627
static VALUE rb_node_prepend_child(VALUE self, VALUE child) {
cmark_node *node1, *node2;
Data_Get_Struct(self, cmark_node, node1);
Data_Get_Struct(child, cmark_node, node2);
if (!cmark_node_prepend_child(node1, node2)) {
rb_raise(rb_mNodeError, "could not prepend child");
}
rb_parent_added(child);
return Qtrue;
}
|
#previous ⇒ Object
Public: Fetches the previous sibling of the current node.
Returns a CommonMarker::Node if a parent exists, ‘nil` otherise.
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# File 'ext/commonmarker/commonmarker.c', line 695 static VALUE rb_node_previous(VALUE self) { cmark_node *node, *previous; Data_Get_Struct(self, cmark_node, node); previous = cmark_node_previous(node); return rb_node_to_value(previous); } |
#sourcepos ⇒ Object
Public: Fetches the sourcepos of the node.
Returns a Hash containing Symbol keys of the positions.
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# File 'ext/commonmarker/commonmarker.c', line 414 static VALUE rb_node_get_sourcepos(VALUE self) { int start_line, start_column, end_line, end_column; VALUE result; cmark_node *node; Data_Get_Struct(self, cmark_node, node); start_line = cmark_node_get_start_line(node); start_column = cmark_node_get_start_column(node); end_line = cmark_node_get_end_line(node); end_column = cmark_node_get_end_column(node); result = rb_hash_new(); rb_hash_aset(result, CSTR2SYM("start_line"), INT2NUM(start_line)); rb_hash_aset(result, CSTR2SYM("start_column"), INT2NUM(start_column)); rb_hash_aset(result, CSTR2SYM("end_line"), INT2NUM(end_line)); rb_hash_aset(result, CSTR2SYM("end_column"), INT2NUM(end_column)); return result; } |
#string_content ⇒ Object
Public: Fetch the string contents of the node.
Returns a String.
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# File 'ext/commonmarker/commonmarker.c', line 292
static VALUE rb_node_get_string_content(VALUE self) {
const char *text;
cmark_node *node;
Data_Get_Struct(self, cmark_node, node);
text = cmark_node_get_literal(node);
if (text == NULL) {
rb_raise(rb_mNodeError, "could not get string content");
}
return encode_utf8_string(text);
}
|
#string_content=(s) ⇒ Object
Public: Sets the string content of the node.
string - A String containing new content.
Raises NodeError if the string content can’t be set.
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# File 'ext/commonmarker/commonmarker.c', line 312
static VALUE rb_node_set_string_content(VALUE self, VALUE s) {
char *text;
cmark_node *node;
Check_Type(s, T_STRING);
Data_Get_Struct(self, cmark_node, node);
text = StringValueCStr(s);
if (!cmark_node_set_literal(node, text)) {
rb_raise(rb_mNodeError, "could not set string content");
}
return Qnil;
}
|
#table_alignments ⇒ Object
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# File 'ext/commonmarker/commonmarker.c', line 1007
static VALUE rb_node_get_table_alignments(VALUE self) {
uint16_t column_count, i;
uint8_t *alignments;
cmark_node *node;
VALUE ary;
Data_Get_Struct(self, cmark_node, node);
column_count = cmarkextensions_get_table_columns(node);
alignments = cmarkextensions_get_table_alignments(node);
if (!column_count || !alignments) {
rb_raise(rb_mNodeError, "could not get column_count or alignments");
}
ary = rb_ary_new();
for (i = 0; i < column_count; ++i) {
if (alignments[i] == 'l')
rb_ary_push(ary, sym_left);
else if (alignments[i] == 'c')
rb_ary_push(ary, sym_center);
else if (alignments[i] == 'r')
rb_ary_push(ary, sym_right);
else
rb_ary_push(ary, Qnil);
}
return ary;
}
|
#title ⇒ Object
Public: Gets the title of the current node (must be a ‘:link` or `:image`).
Returns a String. Raises a NodeError if the title can’t be retrieved.
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# File 'ext/commonmarker/commonmarker.c', line 751
static VALUE rb_node_get_title(VALUE self) {
const char *text;
cmark_node *node;
Data_Get_Struct(self, cmark_node, node);
text = cmark_node_get_title(node);
if (text == NULL) {
rb_raise(rb_mNodeError, "could not get title");
}
return rb_str_new2(text);
}
|
#title=(title) ⇒ Object
Public: Sets the title of the current node (must be a ‘:link` or `:image`).
title - A String representing the new title
Raises a NodeError if the title can’t be set.
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# File 'ext/commonmarker/commonmarker.c', line 771
static VALUE rb_node_set_title(VALUE self, VALUE title) {
char *text;
cmark_node *node;
Check_Type(title, T_STRING);
Data_Get_Struct(self, cmark_node, node);
text = StringValueCStr(title);
if (!cmark_node_set_title(node, text)) {
rb_raise(rb_mNodeError, "could not set title");
}
return Qnil;
}
|
#to_commonmark(options = :DEFAULT) ⇒ Object
Public: Convert the node to a CommonMark string.
options - A Symbol or of Symbols indicating the render options
Returns a String.
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# File 'lib/commonmarker/node.rb', line 36 def to_commonmark( = :DEFAULT) opts = Config.(, :render) _render_commonmark(opts).force_encoding('utf-8') end |
#to_html(options = :DEFAULT, extensions = []) ⇒ Object
Public: Convert the node to an HTML string.
options - A Symbol or of Symbols indicating the render options extensions - An of Symbols indicating the extensions to use
Returns a String.
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# File 'lib/commonmarker/node.rb', line 26 def to_html( = :DEFAULT, extensions = []) opts = Config.(, :render) _render_html(opts, extensions).force_encoding('utf-8') end |
#to_plaintext(options = :DEFAULT) ⇒ Object
Public: Convert the node to a plain text string.
options - A Symbol or of Symbols indicating the render options
Returns a String.
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# File 'lib/commonmarker/node.rb', line 46 def to_plaintext( = :DEFAULT) opts = Config.(, :render) _render_plaintext(opts).force_encoding('utf-8') end |
#type ⇒ Object
Public: Fetches the list type of the node.
Returns a Symbol representing the node’s type.
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# File 'ext/commonmarker/commonmarker.c', line 332
static VALUE rb_node_get_type(VALUE self) {
int node_type;
cmark_node *node;
VALUE symbol;
const char *s;
Data_Get_Struct(self, cmark_node, node);
node_type = cmark_node_get_type(node);
symbol = Qnil;
switch (node_type) {
case CMARK_NODE_DOCUMENT:
symbol = sym_document;
break;
case CMARK_NODE_BLOCK_QUOTE:
symbol = sym_blockquote;
break;
case CMARK_NODE_LIST:
symbol = sym_list;
break;
case CMARK_NODE_ITEM:
symbol = sym_list_item;
break;
case CMARK_NODE_CODE_BLOCK:
symbol = sym_code_block;
break;
case CMARK_NODE_HTML:
symbol = sym_html;
break;
case CMARK_NODE_PARAGRAPH:
symbol = sym_paragraph;
break;
case CMARK_NODE_HEADER:
symbol = sym_header;
break;
case CMARK_NODE_HRULE:
symbol = sym_hrule;
break;
case CMARK_NODE_TEXT:
symbol = sym_text;
break;
case CMARK_NODE_SOFTBREAK:
symbol = sym_softbreak;
break;
case CMARK_NODE_LINEBREAK:
symbol = sym_linebreak;
break;
case CMARK_NODE_CODE:
symbol = sym_code;
break;
case CMARK_NODE_INLINE_HTML:
symbol = sym_inline_html;
break;
case CMARK_NODE_EMPH:
symbol = sym_emph;
break;
case CMARK_NODE_STRONG:
symbol = sym_strong;
break;
case CMARK_NODE_LINK:
symbol = sym_link;
break;
case CMARK_NODE_IMAGE:
symbol = sym_image;
break;
default:
if (node->extension) {
s = node->extension->get_type_string_func(node->extension, node);
return ID2SYM(rb_intern(s));
}
rb_raise(rb_mNodeError, "invalid node type %d", node_type);
}
return symbol;
}
|
#type_string ⇒ Object
Public: Returns the type of the current pointer as a string.
Returns a String.
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# File 'ext/commonmarker/commonmarker.c', line 440 static VALUE rb_node_get_type_string(VALUE self) { cmark_node *node; Data_Get_Struct(self, cmark_node, node); return rb_str_new2(cmark_node_get_type_string(node)); } |
#url ⇒ Object
Public: Gets the URL of the current node (must be a ‘:link` or `:image`).
Returns a String. Raises a NodeError if the URL can’t be retrieved.
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# File 'ext/commonmarker/commonmarker.c', line 710
static VALUE rb_node_get_url(VALUE self) {
const char *text;
cmark_node *node;
Data_Get_Struct(self, cmark_node, node);
text = cmark_node_get_url(node);
if (text == NULL) {
rb_raise(rb_mNodeError, "could not get url");
}
return rb_str_new2(text);
}
|
#url=(url) ⇒ Object
Public: Sets the URL of the current node (must be a ‘:link` or `:image`).
url - A String representing the new URL
Raises a NodeError if the URL can’t be set.
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# File 'ext/commonmarker/commonmarker.c', line 730
static VALUE rb_node_set_url(VALUE self, VALUE url) {
cmark_node *node;
char *text;
Check_Type(url, T_STRING);
Data_Get_Struct(self, cmark_node, node);
text = StringValueCStr(url);
if (!cmark_node_set_url(node, text)) {
rb_raise(rb_mNodeError, "could not set url");
}
return Qnil;
}
|
#walk {|_self| ... } ⇒ Object
Public: An iterator that “walks the tree,” descending into children recursively.
blk - A Proc representing the action to take for each child
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# File 'lib/commonmarker/node.rb', line 11 def walk(&block) return enum_for(:walk) unless block_given? yield self each do |child| child.walk(&block) end end |