I am currently dealing with a large text file consisting of over 852000 lines, each containing song verses preceded by different numbers like 1., 134-20., or 1231.. The verses may have four or more lines. Additionally, there are variations within the lines that I need to ignore for now.
This is the code I've been struggling with and haven't achieved satisfactory results so far:
$.ajax({url:"LD.txt",dataType:'text',success:function(data){
//var lines=data.match(/(.*)\r\n(^[A-Z].*)+/mg);
var lines=data.match(/(.*)(^[A-Z].*)+/mg);
for(var i=0;i<50/*lines.length*/;i++){
var line=lines[i].replace("\r\n","");console.log(i+" "+line);
}}});
Here is an excerpt from the UTF-8 text file:
/* 1970 #1.# PAR DZIESMĀM UN DZIEDAŠANU
#1. Dziesmas un dziedašana vispāriga tautas manta un cilvēka mūža pavadoņi.
1.Dziesmas visai Latvijai kopeja manta. */
15.
Dziesmiņ' mana, kā dziedama,
Ne ta mana pamanita;
Vecā māte pamācija,
Aizkrāsnē tupedama.
#279a.
16.
Māci, māte, man' dziedāt,
Mā...
The javascript solution I'm aiming for should allow searching for specific words in the text input. For example, if one searches for the exact word dziedama, the output should display the preceding number (which could be several lines before) along with the verse part containing the searched word highlighted in bold.
15. Dziesmiņ' mana, kā <b>dziedama</b>, Ne ta mana pamanita; Vecā māte pamācija, Aizkrāsnē tupedama.
If the search query contains an asterisk like dzie*, the full word should be shown in bold within the results.
15. <b>Dziesmiņ'</b> mana, kā <b>dziedama</b>, Ne ta mana pamanita; Vecā māte pamācija, Aizkrāsnē tupedama.
16. Māci, māte, man' <b>dziedāt</b>, Māc' ar vienu Dieva <b>dziesmu</b>, Ko <b>dziedās</b> dvēselite, Pie Dieviņa aizgājuse.
...The search functionality should also cover words with an asterisk at the beginning like *esmu, which can match variations such as dziesmu, iesmu, Dievadziesmu, etc., with variable characters hidden behind the asterisk.
If the query includes letters followed by a question mark like dzied?, the search should return verses containing similar words like dziedu, dziedi, etc., with one character represented by the question mark.
In case the search query is enclosed in double quotes like vienu Dieva, it should precisely match the sequence of words in the verses.
The search should support diacritics-rich text and also provide options for normalization without diacritics.
Thank you for your assistance!