flutter_package / gpt_markdown

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saminsohag
b5cd451e 1 parent 43eeb3c4

bug fixed

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Showing 7 changed files with 201 additions and 78 deletions
{
"cSpell.words": [
"nbsp",
"Rightarrow"
]
}
\ No newline at end of file
... ...
## 0.1.5
* New shortcut added.
* Font fixed.
## 0.1.4
* Html parser math fixed.
## 0.1.3
* Html parser fixed.
## 0.1.2
* Baseline fixed.
## 0.1.1
* Bug fixed.
## 0.1.0
* Color scheme fixed.
## 0.0.9
* Color scheme fixed.
## 0.0.8
* Error display fixed.
... ...
import 'package:flutter/material.dart';
// ignore: depend_on_referenced_packages
import 'package:tex_text/tex_text.dart';
void main(List<String> args) {
... ... @@ -19,34 +20,62 @@ class _MyAppState extends State<MyApp> {
return MaterialApp(
home: Scaffold(
appBar: AppBar(title: const Text("Tex Text.")),
body: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
AnimatedBuilder(
animation: _text,
builder: (context, child) {
return TexText(
_text.text,
alignment: TexAlignment.start,
style: Theme.of(context).textTheme.titleLarge?.copyWith(),
mathStyle: MathStyle.text,
);
}),
const SizedBox(
height: 100,
body: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Expanded(
child: ListView(
padding: const EdgeInsets.all(10),
children: [
AnimatedBuilder(
animation: _text,
builder: (context, child) {
return Material(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(4),
side: const BorderSide(width: 1),
),
child: TexText(
// TexText.newEasySyntax(_text.text),
_text.text,
alignment: TexAlignment.start,
style: Theme.of(context)
.textTheme
.headlineLarge
?.copyWith(
// color: Colors.red,
),
mathStyle: MathStyle.displayCramped,
),
);
}),
],
),
TextField(
controller: _text,
maxLines: null,
decoration: const InputDecoration(
border: OutlineInputBorder(),
),
),
TextField(
controller: _text,
maxLines: null,
decoration: const InputDecoration(
border: OutlineInputBorder(),
),
],
),
),
Builder(builder: (context) {
return FilledButton(
onPressed: () {
showDialog(
context: context,
builder: (context) => SimpleDialog(
children: [
SelectableText(TexText.toHtmlData((_text.text)))
],
),
);
},
child: const Text("To html"),
);
})
],
),
),
);
... ...
... ... @@ -238,7 +238,7 @@ packages:
path: ".."
relative: true
source: path
version: "0.0.8"
version: "0.1.5"
tuple:
dependency: transitive
description:
... ...
... ... @@ -47,7 +47,7 @@ dev_dependencies:
# rules and activating additional ones.
flutter_lints: ^2.0.0
tex_text:
path: ../
path: ../../tex_text
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
... ...
... ... @@ -27,78 +27,137 @@ enum TexAlignment {
class TexText extends StatelessWidget {
const TexText(this.text,
{super.key,
this.style,
this.mathStyle = MathStyle.display,
this.alignment = TexAlignment.start});
TextStyle? style,
this.mathStyle = MathStyle.text,
this.alignment = TexAlignment.start})
: _style = style;
final String text;
final TextStyle? style;
final TextStyle? _style;
final MathStyle mathStyle;
final TexAlignment alignment;
List<Widget> generateWidget(String e) {
/// LaTex to HTML parser
String toHtml() {
return toHtmlData(text);
}
static String _newEasySyntax(String data) {
return data
.replaceAll(r"\frac", r"\cfrac")
.replaceAll(r"\left[", r"[")
.replaceAll(r"\right]", r"]")
.replaceAll(r"[", r"{\left[")
.replaceAll(r"]", r"\right]}")
.replaceAll(r"\left\{", r"\{")
.replaceAll(r"\right\}", r"\}")
.replaceAll(r"\{", r"{\left\{")
.replaceAll(r"\}", r"\right\}}")
.replaceAll(r"\left(", r"(")
.replaceAll(r"\right)", r")")
.replaceAll(r"(", r"{\left(")
.replaceAll(r")", r"\right)}")
.replaceAll(RegExp(r"\\tf"), r"\therefore")
.replaceAll(RegExp(r"\\bc"), r"\because")
.replaceAllMapped(
RegExp(r"([^A-Za-z]|^)(sin|cos|tan|cosec|sec|cot)([^A-Za-z]|$)"),
(match) => "{\\${match[2].toString()}}${match[3].toString()}")
.replaceAll(r"=>", r"{\Rightarrow}")
.replaceAll(RegExp(r"\\AA(\s|$)"), r"{Å}")
.replaceAll(r"*", r"{\times}")
.replaceAllMapped(
RegExp(r"\\([a-z]?)mat(\s+?\S.*?)\\([a-z]?)mat"),
(match) =>
"\\begin{${match[1].toString()}matrix}${match[2].toString().replaceAll("\\&", r"{\&}").replaceAll(",", "&").replaceAll("&&", "\\\\")}\\end{${match[3].toString()}matrix}");
}
/// LaTex to HTML parser
static String toHtmlData(String data) {
const dollar = r"\[-~`::36]";
List<Widget> widgets = [];
return data.replaceAll("\\\$", dollar).splitMapJoin(
RegExp(
r"(?!\\)\$(.*?)(?!\\)\$",
),
onMatch: (p0) {
return "\\(${_newEasySyntax(p0[1].toString().replaceAll(dollar, "\\\$"))}\\)";
},
onNonMatch: (p0) {
return p0
.replaceAll(dollar, "\$")
.replaceAll("\n", "</br>")
.replaceAll(" ", r"&nbsp;");
},
).trim();
}
Widget _generateWidget(BuildContext context, String e) {
TextStyle? style = _style ?? Theme.of(context).textTheme.bodyMedium;
const dollar = r"\[-~`::36]";
List<InlineSpan> widgets = [];
e.replaceAll("\\\$", dollar).splitMapJoin(
RegExp(
r"(?!\\)\$(.*?)(?!\\)\$",
r"\$(.*?)\$",
),
onMatch: (p0) {
widgets.add(
Math.tex(
p0[1].toString().replaceAll(dollar, "\\\$"),
textStyle: style,
mathStyle: mathStyle,
textScaleFactor: 1,
onErrorFallback: (err) {
return Text(
"\$${p0[1]}\$",
style: style?.copyWith(color: Colors.red),
);
},
WidgetSpan(
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
child: Math.tex(
_newEasySyntax(p0[1].toString().replaceAll(dollar, "\\\$")),
textStyle: style?.copyWith(
fontFamily: "SansSerif",
),
mathStyle: mathStyle,
textScaleFactor: 1.3,
options: MathOptions(
sizeUnderTextStyle: MathSize.large,
color: style?.color ?? Theme.of(context).colorScheme.onSurface,
fontSize: style?.fontSize ??
Theme.of(context).textTheme.bodyMedium?.fontSize,
mathFontOptions: FontOptions(
fontFamily: "Main",
fontWeight: style?.fontWeight ?? FontWeight.normal,
),
textFontOptions: FontOptions(
fontFamily: "Main",
fontWeight: style?.fontWeight ?? FontWeight.normal,
),
style: mathStyle,
),
onErrorFallback: (err) {
return Text(
"\$${p0[1]}\$",
style: style?.copyWith(
color: Theme.of(context).colorScheme.error) ??
TextStyle(color: Theme.of(context).colorScheme.error),
);
},
),
),
);
return p0[1].toString();
},
onNonMatch: (p0) {
p0
.toString()
.replaceAll(dollar, "\$")
.split(" ")
.asMap()
.forEach((key, element) {
if (key != 0) {
widgets.add(Text(
" ",
textAlign: TextAlign.values[alignment.index],
style: style,
));
}
widgets.add(Text(
element,
textAlign: TextAlign.values[alignment.index],
widgets.add(
TextSpan(
text: p0.toString().replaceAll(dollar, "\$"),
style: style,
));
});
),
);
return p0;
},
);
return widgets;
return Text.rich(
TextSpan(
children: widgets,
),
textAlign: TextAlign.values[alignment.index],
);
}
@override
Widget build(BuildContext context) {
return Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.values[alignment.index],
children: text.split('\n').map<Widget>(
(e) {
return Wrap(
alignment: WrapAlignment.values[alignment.index],
crossAxisAlignment: WrapCrossAlignment.center,
children: generateWidget(e));
},
).toList(),
);
return _generateWidget(context, text);
}
}
... ...
name: tex_text
description: This package for Flutter allows you to show text on a Flutter app with LaTex math formula and normal text from string. It is vary easy to use and works for all of the platforms.
version: 0.0.8
version: 0.1.5
homepage: https://github.com/saminsohag/flutter_packages/tree/main/tex_text
environment:
... ...