1 | #Region "Microsoft.VisualBasic::340c6fab2002017c3ece903b4f449d2d, Microsoft.VisualBasic.Core\Language\StringHelpers.vb" |
2 | |
3 | ' Author: |
4 | ' |
5 | ' asuka (amethyst.asuka@gcmodeller.org) |
6 | ' xie (genetics@smrucc.org) |
7 | ' xieguigang (xie.guigang@live.com) |
8 | ' |
9 | ' Copyright (c) 2018 GPL3 Licensed |
10 | ' |
11 | ' |
12 | ' GNU GENERAL PUBLIC LICENSE (GPL3) |
13 | ' |
14 | ' |
15 | ' This program is free software: you can redistribute it and/or modify |
16 | ' it under the terms of the GNU General Public License as published by |
17 | ' the Free Software Foundation, either version 3 of the License, or |
18 | ' (at your option) any later version. |
19 | ' |
20 | ' This program is distributed in the hope that it will be useful, |
21 | ' but WITHOUT ANY WARRANTY; without even the implied warranty of |
22 | ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
23 | ' GNU General Public License for more details. |
24 | ' |
25 | ' You should have received a copy of the GNU General Public License |
26 | ' along with this program. If not, see <http://www.gnu.org/licenses/>. |
27 | |
28 | |
29 | |
30 | ' /********************************************************************************/ |
31 | |
32 | ' Summaries: |
33 | |
34 | ' Module FormatHelpers |
35 | ' |
36 | ' Function: StringFormat, xFormat |
37 | ' |
38 | ' Structure FormatHelper |
39 | ' |
40 | ' Function: ToString |
41 | ' Operators: (+2 Overloads) <=, (+2 Overloads) >= |
42 | ' |
43 | ' |
44 | ' /********************************************************************************/ |
45 | |
46 | #End Region |
47 | |
48 | Imports System.Runtime.CompilerServices |
49 | Imports Microsoft.VisualBasic.Language.C |
50 | |
51 | Namespace Language |
52 | |
53 | ''' <summary> |
54 | ''' ``<see cref="sprintf"/>`` syntax helpers |
55 | ''' </summary> |
56 | Public Module FormatHelpers |
57 | |
58 | ''' <summary> |
59 | ''' ``<see cref="sprintf"/>`` extensions |
60 | ''' </summary> |
61 | ''' <param name="s"></param> |
62 | ''' <returns></returns> |
63 | <Extension> |
64 | Public Function xFormat(s As String) As FormatHelper |
65 | Return New FormatHelper With {.source = s} |
66 | End Function |
67 | |
68 | ''' <summary> |
69 | ''' Synax like ``"formats" <= {args}.xFormat`` |
70 | ''' Format by <see cref="sprintf"/> |
71 | ''' </summary> |
72 | ''' <param name="args"></param> |
73 | ''' <returns></returns> |
74 | <Extension> |
75 | Public Function StringFormat(args As String()) As FormatHelper |
76 | Return New FormatHelper With {.args = args} |
77 | End Function |
78 | End Module |
79 | |
80 | ''' <summary> |
81 | ''' ``<see cref="sprintf"/>`` reference |
82 | ''' </summary> |
83 | Public Structure FormatHelper |
84 | |
85 | Dim source$, args$() |
86 | |
87 | Public Overrides Function ToString() As String |
88 | Return source |
89 | End Function |
90 | |
91 | Public Shared Operator <=(pattern As String, format As FormatHelper) As String |
92 | Return sprintf(pattern, format.args) |
93 | End Operator |
94 | |
95 | Public Shared Operator >=(pattern As String, format As FormatHelper) As String |
96 | Throw New NotSupportedException |
97 | End Operator |
98 | |
99 | Public Shared Operator <=(format As FormatHelper, args As String()) As String |
100 | Return sprintf(format.source, args) |
101 | End Operator |
102 | |
103 | Public Shared Operator >=(format As FormatHelper, args As String()) As String |
104 | Throw New NotSupportedException |
105 | End Operator |
106 | End Structure |
107 | End Namespace |