Add regexes module in moz_readability that contains the regular
expressions used. For optimal performance, the regular expresions are compiled to static values to prevent recompiling in loops
This commit is contained in:
parent
d2bd31dc47
commit
75018894ae
3 changed files with 101 additions and 0 deletions
|
@ -1,3 +1,6 @@
|
|||
#[macro_use]
|
||||
extern crate lazy_static;
|
||||
|
||||
use std::fs::File;
|
||||
|
||||
use async_std::{fs::create_dir, fs::remove_dir_all, task};
|
||||
|
|
|
@ -17,6 +17,7 @@ const PHRASING_ELEMS: [&str; 39] = [
|
|||
"output", "progress", "q", "ruby", "samp", "script", "select", "small", "span", "strong",
|
||||
"sub", "sup", "textarea", "time", "var", "wbr",
|
||||
];
|
||||
mod regexes;
|
||||
|
||||
pub struct Readability {
|
||||
root_node: NodeRef,
|
||||
|
|
97
src/moz_readability/regexes.rs
Normal file
97
src/moz_readability/regexes.rs
Normal file
|
@ -0,0 +1,97 @@
|
|||
/// This module contains regular expressions frequently used by moz_readability
|
||||
/// All regexes that only test if a `&str` matches the regex are preceded by the
|
||||
/// word "is_match". All other regexes are publicly accessible.
|
||||
use regex::Regex;
|
||||
pub fn is_match_byline(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref BYLINE_REGEX: Regex =
|
||||
Regex::new(r"(?i)byline|author|dateline|writtenby|p-author").unwrap();
|
||||
}
|
||||
BYLINE_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_positive(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref POSITIVE_REGEX: Regex = Regex::new(r"(?i)article|body|content|entry|hentry|h-entry|main|page|pagination|post|text|blog|story").unwrap();
|
||||
}
|
||||
POSITIVE_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_negative(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref NEGATIVE_REGEX: Regex = Regex::new(r"(?i)hidden|^hid$| hid$| hid |^hid |banner|combx|comment|com-|contact|foot|footer|footnote|gdpr|masthead|media|meta|outbrain|promo|related|scroll|share|shoutbox|sidebar|skyscraper|sponsor|shopping|tags|tool|widget").unwrap();
|
||||
}
|
||||
NEGATIVE_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_videos(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref VIDEOS_REGEX: Regex = Regex::new(r"(?i)//(www\.)?((dailymotion|youtube|youtube-nocookie|player\.vimeo|v\.qq)\.com|(archive|upload\.wikimedia)\.org|player\.twitch\.tv)").unwrap();
|
||||
}
|
||||
VIDEOS_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_unlikely(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref UNLIKELY_REGEX: Regex = Regex::new(r"(?i)-ad-|ai2html|banner|breadcrumbs|combx|comment|community|cover-wrap|disqus|extra|footer|gdpr|header|legends|menu|related|remark|replies|rss|shoutbox|sidebar|skyscraper|social|sponsor|supplemental|ad-break|agegate|pagination|pager|popup|yom-remote").unwrap();
|
||||
}
|
||||
UNLIKELY_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_ok_maybe(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref OK_MAYBE_REGEX: Regex =
|
||||
Regex::new(r"(?i)and|article|body|column|content|main|shadow").unwrap();
|
||||
}
|
||||
OK_MAYBE_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_node_content(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref NODE_CONTENT_REGEX: Regex = Regex::new(r"\.( |$)").unwrap();
|
||||
}
|
||||
NODE_CONTENT_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_share_elems(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref SHARE_ELEMS_REGEX: Regex =
|
||||
Regex::new(r"(?i)(\b|_)(share|sharedaddy)(\b|_)").unwrap();
|
||||
}
|
||||
SHARE_ELEMS_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_has_content(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref HAS_CONTENT_REGEX: Regex = Regex::new(r"\S$").unwrap();
|
||||
}
|
||||
HAS_CONTENT_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_img_ext(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref IMG_EXT_REGEX: Regex = Regex::new(r"(?i)\.(jpg|jpeg|png|webp)").unwrap();
|
||||
}
|
||||
IMG_EXT_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_srcset(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref SRCSET_REGEX: Regex = Regex::new(r"\.(jpg|jpeg|png|webp)\s+\d").unwrap();
|
||||
}
|
||||
SRCSET_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
pub fn is_match_src_regex(match_str: &str) -> bool {
|
||||
lazy_static! {
|
||||
static ref SRC_REGEX: Regex = Regex::new(r"^\s*\S+\.(jpg|jpeg|png|webp)\S*\s*$").unwrap();
|
||||
}
|
||||
SRC_REGEX.is_match(match_str)
|
||||
}
|
||||
|
||||
lazy_static! {
|
||||
pub static ref NORMALIZE_REGEX: Regex = Regex::new(r"\s{2,}").unwrap();
|
||||
pub static ref B64_DATA_URL_REGEX: Regex =
|
||||
Regex::new(r"(?i)^data:\s*([^\s;,]+)\s*;\s*base64\s*").unwrap();
|
||||
pub static ref BASE64_REGEX: Regex = Regex::new(r"(?i)base64\s*").unwrap();
|
||||
}
|
Loading…
Reference in a new issue