Line data Source code
1 : /* File: io_txt_writer.c; Copyright and License: see below */
2 :
3 : #include "format/io_txt_writer.h"
4 : #include "utf8stringbuf/utf8stringlines.h"
5 : #include "u8/u8_trace.h"
6 : #include "u8/u8_log.h"
7 : #include <stdio.h>
8 : #include <stdbool.h>
9 : #include <assert.h>
10 :
11 : enum io_txt_writer_indent_enum {
12 : TXT_WRITER_INDENT_COLUMN = 80, /*!< the text column in which the id shal end */
13 : TXT_WRITER_MAX_COLUMN = 80, /*!< the number of max columns the text shall be layouted - if possible */
14 : };
15 :
16 : static const char TXT_ID_INDENT_SPACES[TXT_WRITER_INDENT_COLUMN+1]
17 : = " ";
18 : static const char TXT_NEWLINE[] = "\n";
19 :
20 7 : void io_txt_writer_init ( io_txt_writer_t *this_,
21 : universal_output_stream_t *output )
22 : {
23 7 : U8_TRACE_BEGIN();
24 7 : assert( NULL != output );
25 :
26 7 : (*this_).output = output;
27 :
28 7 : U8_TRACE_END();
29 7 : }
30 :
31 7 : void io_txt_writer_destroy( io_txt_writer_t *this_ )
32 : {
33 7 : U8_TRACE_BEGIN();
34 :
35 7 : (*this_).output = NULL;
36 :
37 7 : U8_TRACE_END();
38 7 : }
39 :
40 7 : u8_error_t io_txt_writer_write_indent_multiline_string ( io_txt_writer_t *this_,
41 : const char *indent,
42 : const char *multiline_string )
43 : {
44 7 : U8_TRACE_BEGIN();
45 7 : assert( NULL != indent );
46 7 : assert( NULL != (*this_).output );
47 7 : u8_error_t result = U8_ERROR_NONE;
48 : utf8stringview_t indent_view;
49 7 : utf8stringview_init_str( &indent_view, indent );
50 :
51 7 : if ( NULL != multiline_string )
52 : {
53 : utf8stringview_t line_list;
54 6 : utf8stringview_init_str( &line_list, multiline_string );
55 : utf8stringlines_t line_iter;
56 6 : utf8stringlines_init( &line_iter,
57 : &line_list,
58 6 : TXT_WRITER_MAX_COLUMN - utf8stringview_get_length( &indent_view ) /*line_length*/
59 : );
60 :
61 17 : while ( utf8stringlines_has_next( &line_iter ) )
62 : {
63 11 : utf8stringview_t line = utf8stringlines_next( &line_iter );
64 11 : const bool is_empty_last_line
65 11 : = ( ! utf8stringlines_has_next( &line_iter ) )&&( 0 == utf8stringview_get_length( &line ) );
66 11 : if ( ! is_empty_last_line )
67 : {
68 : /* print indent pattern */
69 8 : result |= universal_output_stream_write( (*this_).output,
70 8 : utf8stringview_get_start( &indent_view ),
71 : utf8stringview_get_length( &indent_view )
72 : );
73 :
74 : /* print next line */
75 8 : result |= universal_output_stream_write( (*this_).output,
76 8 : utf8stringview_get_start( &line ),
77 : utf8stringview_get_length( &line )
78 : );
79 :
80 8 : if ( ! utf8stringview_ends_with_str( &line, TXT_NEWLINE ) )
81 : {
82 : /* print newline */
83 4 : result |= universal_output_stream_write( (*this_).output, TXT_NEWLINE, strlen(TXT_NEWLINE) );
84 : }
85 : }
86 : }
87 6 : utf8stringlines_destroy( &line_iter );
88 6 : utf8stringview_destroy( &line_list );
89 : }
90 :
91 7 : utf8stringview_destroy( &indent_view );
92 :
93 7 : U8_TRACE_END_ERR( result );
94 7 : return result;
95 : }
96 :
97 0 : u8_error_t io_txt_writer_write_aligned_id ( io_txt_writer_t *this_, int right_align_to, data_id_t id )
98 : {
99 0 : U8_TRACE_BEGIN();
100 0 : assert( DATA_TABLE_VOID != data_id_get_table(&id) );
101 0 : assert( DATA_ROW_VOID != data_id_get_row_id(&id) );
102 0 : assert( NULL != (*this_).output );
103 : assert( sizeof(TXT_ID_INDENT_SPACES) == 1+TXT_WRITER_INDENT_COLUMN );
104 0 : u8_error_t result = U8_ERROR_NONE;
105 :
106 : /* indent */
107 0 : if ( right_align_to > TXT_WRITER_INDENT_COLUMN )
108 : {
109 0 : U8_LOG_ERROR_INT( "more spaces requested than available. missing:", right_align_to - TXT_WRITER_INDENT_COLUMN );
110 0 : right_align_to = TXT_WRITER_INDENT_COLUMN;
111 : }
112 :
113 : /* print id */
114 : {
115 : char id_buf[DATA_ID_MAX_UTF8STRING_SIZE+2];
116 0 : utf8stringbuf_t id_str = UTF8STRINGBUF( id_buf );
117 0 : utf8stringbuf_clear( &id_str );
118 0 : utf8stringbuf_append_str( &id_str, "[" );
119 0 : data_id_to_utf8stringbuf( &id, id_str );
120 0 : utf8stringbuf_append_str( &id_str, "]" );
121 0 : const unsigned int len = utf8stringbuf_get_length( &id_str );
122 :
123 : /* do indentation: */
124 0 : int remaining_indent = right_align_to - len;
125 0 : if ( remaining_indent > 0 )
126 : {
127 0 : result |= universal_output_stream_write( (*this_).output, &TXT_ID_INDENT_SPACES, remaining_indent );
128 : }
129 :
130 0 : result |= universal_output_stream_write( (*this_).output, utf8stringbuf_get_string( &id_str ), len );
131 : }
132 :
133 0 : U8_TRACE_END_ERR( result );
134 0 : return result;
135 : }
136 :
137 0 : u8_error_t io_txt_writer_write_plain_id ( io_txt_writer_t *this_, data_id_t id )
138 : {
139 0 : U8_TRACE_BEGIN();
140 0 : assert( DATA_TABLE_VOID != data_id_get_table(&id) );
141 0 : assert( DATA_ROW_VOID != data_id_get_row_id(&id) );
142 0 : assert( NULL != (*this_).output );
143 0 : u8_error_t result = U8_ERROR_NONE;
144 :
145 : /* print id */
146 : {
147 : char id_buf[DATA_ID_MAX_UTF8STRING_SIZE];
148 0 : utf8stringbuf_t id_str = UTF8STRINGBUF( id_buf );
149 0 : utf8stringbuf_clear( &id_str );
150 0 : data_id_to_utf8stringbuf( &id, id_str );
151 :
152 0 : const unsigned int len = utf8stringbuf_get_length( &id_str );
153 0 : result |= universal_output_stream_write ( (*this_).output, utf8stringbuf_get_string( &id_str ), len );
154 : }
155 :
156 0 : U8_TRACE_END_ERR( result );
157 0 : return result;
158 : }
159 :
160 :
161 : /*
162 : Copyright 2017-2025 Andreas Warnke
163 :
164 : Licensed under the Apache License, Version 2.0 (the "License");
165 : you may not use this file except in compliance with the License.
166 : You may obtain a copy of the License at
167 :
168 : http://www.apache.org/licenses/LICENSE-2.0
169 :
170 : Unless required by applicable law or agreed to in writing, software
171 : distributed under the License is distributed on an "AS IS" BASIS,
172 : WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
173 : See the License for the specific language governing permissions and
174 : limitations under the License.
175 : */
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