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110 lines
3.8 KiB
Markdown
110 lines
3.8 KiB
Markdown
# V HTML
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A HTML parser made in V
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## Usage
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If description below isn't enought, see test files
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### Parser
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Responsible for read HTML in full strings or splited string and returns all Tag objets of it HTML or return a DocumentObjectModel, that will try to find how the HTML Tree is.
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#### split_parse(data string)
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This functions is the main function called by parse method to fragment parse your HTML
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#### parse_html(data string, is_file bool)
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This function is called passing a filename or a complete html data string to it
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#### add_code_tag(name string)
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This function is used to add a tag for the parser ignore it's content. For example, if you have an html or XML with a custom tag, like `<script>`, using this function, like `add_code_tag('script')` will make all `script` tags content be jumped, so you still have its content, but will not confuse the parser with it's `>` or `<`
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#### finalize()
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When using **split_parse** method, you must call this function to ends the parse completely
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#### get_tags() []Tag_ptr
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This functions returns a array with all tags and it's content
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#### get_dom() DocumentObjectModel
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Returns the DocumentObjectModel for current parsed tags
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### WARNING
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If you want to reuse parser object to parse another HTML, call `initialize_all()` function first
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### DocumentObjectModel
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A DOM object that will make easier to access some tags and search it
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#### get_by_attribute_value(name string, value string) []Tag_ptr
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This function retuns a Tag array with all tags in document that have a attribute with given name and given value
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#### get_by_tag(name string) []Tag_ptr
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This function retuns a Tag array with all tags in document that have a name with the given value
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#### get_by_attribute(name string) []Tag_ptr
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This function retuns a Tag array with all tags in document that have a attribute with given name
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#### get_root() Tag_ptr
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This function returns the root Tag
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#### get_all_tags() []Tag_ptr
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This function returns all important tags, removing close tags
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### Tag
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An object that holds tags information, such as `name`, `attributes`, `children`
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#### get_children() []Tag_ptr
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Returns all children as an array
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#### get_parent() &Tag
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Returns the parent of current tag
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#### get_name() string
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Returns tag name
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#### get_content() string
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Returns tag content
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#### get_attributes() map[string]string
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Returns all attributes and it value
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#### text() string
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Returns the content of the tag and all tags inside it. Also, any `<br>` tag will be converted into `\n`
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## Some questions that can appear
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### Q: Why in parser have a `builder_str() string` method that returns only the lexeme string?
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A: Because in early stages of the project, strings.Builder are used, but for some bug existing somewhere, it was necessary to use string directly. Later, it's planned to use strings.Builder again
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### Q: Why have a `compare_string(a string, b string) bool` method?
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A: For some reason when using != and == in strings directly, it not working. So, this method is a workaround
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### Q: Will be something like `XPath`?
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A: Like XPath yes. Exactly equal to it, no.
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## Roadmap
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- [x] Parser
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- [x] `<!-- Comments -->` detection
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- [x] `Open Generic tags` detection
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- [x] `Close Generic tags` detection
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- [x] `verify string` detection
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- [x] `tag attributes` detection
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- [x] `attributes values` detection
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- [x] `tag text` (on tag it is declared as content, maybe change for text in the future)
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- [x] `text file for parse` support (open local files for parsing)
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- [x] `open_code` verification
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- [x] DocumentObjectModel
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- [x] push elements that have a close tag into stack
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- [x] remove elements from stack
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- [x] ~~create a new document root if have some syntax error (deleted)~~
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- [x] search tags in `DOM` by attributes
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- [x] search tags in `DOM` by tag type
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- [x] finish dom test
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## License
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[GPL3](LICENSE)
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