New USHF Grammars

New Universal Syntax Highlighting Grammars.

Posted on: 220307

In this next installment, we're looking at the grammars that come with the Universal Syntax Highlighting Function and the new one's I have just added.

HTML

I mentioned in the previous article that the grammar for HTML is only 7 lines of code. Well, here it is...

HSYN.HTML = [ // HTML syntax rules...
/* 0. TOP        */{ cx:0, ch:[1,2] },
/* 1. ENTITY     */{ cl:'ents', os:'&', nd:';', cx:' \r\n\t' },
/* 2. TAGSPACE   */{ cl:'tags', os:'<', nd:'>', ch: [3,4,5,6] },
/* 3. ATTRIBUTES */{ cl:'attrs', oc:' ', cx:'=>/"\'' },
/* 4. S QUOTES   */{ cl:'quote', os:"'", nd:"'", ch:[1] },
/* 5. D QUOTES   */{ cl:'quote', os:'"', nd:'"', ch:[1] },
/* 6. DTD SPACE  */{ cl:'dtd', os:'!', cx:'>', ch:[7] },
/* 7. COMMENT    */{ cl:'comm', os:'--', nd:'--' }
];

This is enough to cover the 8 scopes of HTML.

Javascript

The one for Javascript is a bit meatier, though by no means are the dictionaries for different terms complete...

HSYN.JS = [ // JavaScript syntax rules...
/* 0. TOP       */{ cx:0, ch:[1,2,3,4,5,6,7] },
/* 1. NUMBERS   */{ cl:'nums', oc:'0123456789', cp:'0123456789' },
/* 2. S QUOTES  */{ cl:'quote', os:"'", nd:"'", ch:[4] },
/* 3. D QUOTES  */{ cl:'quote', os:'"', nd:'"', ch:[4] },
/* 4. ESCAPES   */{ cl:'escp', os:'\\', lm:2 },
/* 5. L COMMENT */{ cl:'comm', os:'//', cx:'\r\n' },
/* 6. B COMMENT */{ cl:'comm', os:'/*', nd:'*/' },
/* 7. WORDS     */{ cl:'word', ch:[4],
        oc:'_$ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz', 
        cx:' \t\r\n.,:;+-*/\\%^<>=#&|!~\'"()[]{}?',
        id:[ 
        ['.keyw', // language vocabulary:
'if','else','switch','break','case','while','for','continue',
'try','throw','catch','goto','with','in','do','var','new',
'import','finally','function','return','let','export','typeof',
'instanceof','default','throws','window','document','arguments' ],
        ['.null', // falsey things:
'false','null','undefined','NaN','alert' ],
        ['.true', // truthy things:
'true','Infinity','this','Object','Array','Math','String','Date',
'Number' ],
        ['.term', // common terms:
'length','children','innerHTML','textContent','charAt','charCodeAt',
'parentNode','previousSibling','nextSibling','substr','replace',
'getAttribute','setAttribute','getHours','getMinutes','getSeconds',
'getMilliseconds','getDay','getDate','getMonth','getYear',
'innerHeight','innerWidth','outerHeight','outerWidth','indexOf',
'fromCharCode','getElementsByTagName','toUpperCase','toLowerCase',
'style','display','width','height','src','style','endsWith','startsWith',
'valueOf','pageXOffset','pageYOffset','screenX','screenY','scroll',
'setInterval','setTimeout','clearInterval','clearTimeout',
'encodeURI','decodeURI','floor','ceil','random','from',
'delete','parseInt','toString','setInterval','isPrototypeOf',
'encodeURIComponent','parseFloat','createElement','head','body',
'push','pop','shift','unshift','appendChild','insertBefore',
'onmousemove','onmousedown','onmouseup','onscroll','onresize',
'clientX','clientY','getBoundingClientRect','nodeType','which',
'left','top','bottom','right','scrollLeft','scrollTop','detail',
'documentElement','wheelDelta','offsetTop','offsetLeft','scrollWidth',
'offsetWidth','offsetHeight','getElementById','scrollHeight',
'getContext','getImageData','toDataURL','putImageData','drawImage',
'contentWindow' ]
	]} 
];

There's also CSS and PHP already included, but I won't bother detailing them. PHP is almost the same as Javascript and CSS is mostly just terms.

New Language Arrays

So I have begun to add new language arrays to the Universal Syntax Highlighting Function. As many as I can immediately, and I'll be adding more periodically as I learn new programming languages...

C

/* C language... */
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char** argv){
	int *arr = malloc (sizeof(int) * 100);
	int i = 0;
	while(i<100){
		arr[i] = i;
		i++;
	}
	return 0;
}

Shell Script

if [ "$1" = "log" ]; then
	shift
	case "$WPA_ACTION" in
		"CONNECTED"|"DISCONNECTED")
			[ -x /usr/bin/logger ] || return
			if [ "$#" -gt 0 ]; then
				logger -t "wpa_action" "$@"
			else
				logger -t "wpa_action"
			fi
			;;
		*)
			[ "$#" -gt 0 ] && echo "wpa_action: $@"
			;;
	esac
	return
fi

SQL

-- SUM of call duration per each employee
SELECT 
    employee.id,
    employee.first_name,
    employee.last_name,
    SUM(DATEDIFF("SECOND", call.start_time, call.end_time)) AS call_duration_sum
FROM call
INNER JOIN employee ON call.employee_id = employee.id
GROUP BY
    employee.id,
    employee.first_name,
    employee.last_name
ORDER BY
    employee.id ASC;

Java

package com.domain.package;
import android.view.View;
public class MyView extends View {
	public Context ctx;
	public MyView(Context C){
		super(C); 
		ctx = C;
	}
	private int[] nums = new int[30];
	public int getNumIndex(n){
		int i;
		for(i=0;i<30;i++){
			if(nums[i]==n){ return i; }
		}
		return -1;
	}
}

XML

I actually just expanded the HTML array to include XML declarations...

<?xml version="1.0"?>
<rss version="2.0">
	<channel>
		<title>Diagonal Symmetry</title>
		<link>https://diagonalsymmetry.com</link>
		<item>
			<title>New USHF Grammars</title>
			<link>https://diagonalsymmetry.com/220307</link>
			<pubDate>Mon, 07 Mar 2022 11:11:11 MST</pubDate>
			<description>Introducing new grammars for the Universal Syntax Highlighting Function.</description>
		</item>
	</channel>
</rss>

Github link:
https://github.com/Motekye/USHF