summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/doc/latex/lgrx/README.html
blob: 38dd3d0d176b14383cd9925c8dff20669d37177a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="Docutils 0.10: http://docutils.sourceforge.net/" />
<title>Greek text with the LGR font encoding</title>
<meta name="copyright" content="© 2010 Günter Milde" />
<style type="text/css">

/*
:Author: David Goodger (goodger@python.org)
:Id: $Id: html4css1.css 7434 2012-05-11 21:06:27Z milde $
:Copyright: This stylesheet has been placed in the public domain.

Default cascading style sheet for the HTML output of Docutils.

See http://docutils.sf.net/docs/howto/html-stylesheets.html for how to
customize this style sheet.
*/

/* used to remove borders from tables and images */
.borderless, table.borderless td, table.borderless th {
  border: 0 }

table.borderless td, table.borderless th {
  /* Override padding for "table.docutils td" with "! important".
     The right padding separates the table cells. */
  padding: 0 0.5em 0 0 ! important }

.first {
  /* Override more specific margin styles with "! important". */
  margin-top: 0 ! important }

.last, .with-subtitle {
  margin-bottom: 0 ! important }

.hidden {
  display: none }

a.toc-backref {
  text-decoration: none ;
  color: black }

blockquote.epigraph {
  margin: 2em 5em ; }

dl.docutils dd {
  margin-bottom: 0.5em }

object[type="image/svg+xml"], object[type="application/x-shockwave-flash"] {
  overflow: hidden;
}

/* Uncomment (and remove this text!) to get bold-faced definition list terms
dl.docutils dt {
  font-weight: bold }
*/

div.abstract {
  margin: 2em 5em }

div.abstract p.topic-title {
  font-weight: bold ;
  text-align: center }

div.admonition, div.attention, div.caution, div.danger, div.error,
div.hint, div.important, div.note, div.tip, div.warning {
  margin: 2em ;
  border: medium outset ;
  padding: 1em }

div.admonition p.admonition-title, div.hint p.admonition-title,
div.important p.admonition-title, div.note p.admonition-title,
div.tip p.admonition-title {
  font-weight: bold ;
  font-family: sans-serif }

div.attention p.admonition-title, div.caution p.admonition-title,
div.danger p.admonition-title, div.error p.admonition-title,
div.warning p.admonition-title {
  color: red ;
  font-weight: bold ;
  font-family: sans-serif }

/* Uncomment (and remove this text!) to get reduced vertical space in
   compound paragraphs.
div.compound .compound-first, div.compound .compound-middle {
  margin-bottom: 0.5em }

div.compound .compound-last, div.compound .compound-middle {
  margin-top: 0.5em }
*/

div.dedication {
  margin: 2em 5em ;
  text-align: center ;
  font-style: italic }

div.dedication p.topic-title {
  font-weight: bold ;
  font-style: normal }

div.figure {
  margin-left: 2em ;
  margin-right: 2em }

div.footer, div.header {
  clear: both;
  font-size: smaller }

div.line-block {
  display: block ;
  margin-top: 1em ;
  margin-bottom: 1em }

div.line-block div.line-block {
  margin-top: 0 ;
  margin-bottom: 0 ;
  margin-left: 1.5em }

div.sidebar {
  margin: 0 0 0.5em 1em ;
  border: medium outset ;
  padding: 1em ;
  background-color: #ffffee ;
  width: 40% ;
  float: right ;
  clear: right }

div.sidebar p.rubric {
  font-family: sans-serif ;
  font-size: medium }

div.system-messages {
  margin: 5em }

div.system-messages h1 {
  color: red }

div.system-message {
  border: medium outset ;
  padding: 1em }

div.system-message p.system-message-title {
  color: red ;
  font-weight: bold }

div.topic {
  margin: 2em }

h1.section-subtitle, h2.section-subtitle, h3.section-subtitle,
h4.section-subtitle, h5.section-subtitle, h6.section-subtitle {
  margin-top: 0.4em }

h1.title {
  text-align: center }

h2.subtitle {
  text-align: center }

hr.docutils {
  width: 75% }

img.align-left, .figure.align-left, object.align-left {
  clear: left ;
  float: left ;
  margin-right: 1em }

img.align-right, .figure.align-right, object.align-right {
  clear: right ;
  float: right ;
  margin-left: 1em }

img.align-center, .figure.align-center, object.align-center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.align-left {
  text-align: left }

.align-center {
  clear: both ;
  text-align: center }

.align-right {
  text-align: right }

/* reset inner alignment in figures */
div.align-right {
  text-align: inherit }

/* div.align-center * { */
/*   text-align: left } */

ol.simple, ul.simple {
  margin-bottom: 1em }

ol.arabic {
  list-style: decimal }

ol.loweralpha {
  list-style: lower-alpha }

ol.upperalpha {
  list-style: upper-alpha }

ol.lowerroman {
  list-style: lower-roman }

ol.upperroman {
  list-style: upper-roman }

p.attribution {
  text-align: right ;
  margin-left: 50% }

p.caption {
  font-style: italic }

p.credits {
  font-style: italic ;
  font-size: smaller }

p.label {
  white-space: nowrap }

p.rubric {
  font-weight: bold ;
  font-size: larger ;
  color: maroon ;
  text-align: center }

p.sidebar-title {
  font-family: sans-serif ;
  font-weight: bold ;
  font-size: larger }

p.sidebar-subtitle {
  font-family: sans-serif ;
  font-weight: bold }

p.topic-title {
  font-weight: bold }

pre.address {
  margin-bottom: 0 ;
  margin-top: 0 ;
  font: inherit }

pre.literal-block, pre.doctest-block, pre.math, pre.code {
  margin-left: 2em ;
  margin-right: 2em }

pre.code .ln { /* line numbers */
  color: grey;
}

.code {
  background-color: #eeeeee
}

span.classifier {
  font-family: sans-serif ;
  font-style: oblique }

span.classifier-delimiter {
  font-family: sans-serif ;
  font-weight: bold }

span.interpreted {
  font-family: sans-serif }

span.option {
  white-space: nowrap }

span.pre {
  white-space: pre }

span.problematic {
  color: red }

span.section-subtitle {
  /* font-size relative to parent (h1..h6 element) */
  font-size: 80% }

table.citation {
  border-left: solid 1px gray;
  margin-left: 1px }

table.docinfo {
  margin: 2em 4em }

table.docutils {
  margin-top: 0.5em ;
  margin-bottom: 0.5em }

table.footnote {
  border-left: solid 1px black;
  margin-left: 1px }

table.docutils td, table.docutils th,
table.docinfo td, table.docinfo th {
  padding-left: 0.5em ;
  padding-right: 0.5em ;
  vertical-align: top }

table.docutils th.field-name, table.docinfo th.docinfo-name {
  font-weight: bold ;
  text-align: left ;
  white-space: nowrap ;
  padding-left: 0 }

h1 tt.docutils, h2 tt.docutils, h3 tt.docutils,
h4 tt.docutils, h5 tt.docutils, h6 tt.docutils {
  font-size: 100% }

ul.auto-toc {
  list-style-type: none }

</style>
<style type="text/css">

/* html4css2.css: Cascading style sheet for Docutils' html4strict writer.   */
/*                                                                          */
/* :Author: Günter Milde                                                    */
/* :Copyright: © 2009 Günter Milde.                                         */
/*             Released  without warranties or conditions of any kind       */
/*             under the terms of the Apache License, Version 2.0           */
/*          http://www.apache.org/licenses/LICENSE-2.0                      */
/*                                                                          */
/* This stylesheet supplements the Docutils standard style 'html4css1.css'. */
/* It uses CSS 2.1 elements (supported by up-to-date versions of popular    */
/* browsers).                                                               */

/* General rules */
/* ============= */

body {
  padding: 0 5%;
  margin: 8px 0;
  line-height:1.3;
  /* http://ilovetypography.com/2008/02/28/a-guide-to-web-typography/
  recommends "line-spacing that’s at least 140% of your text size" */
  counter-reset: table;
  /* counter-reset: figure; */
}

/* avoid long lines --> better reading */
/* OTOH: lines should not be too short because of missing hyphenation, */
div.document {
  max-width: 45em;
  margin: auto;
}

/* separate items except for compact lists */
dl > dd {
  margin-bottom: 1em;
}
.compact li, .compact p, .compact ul, .compact ol
dl.simple  > dd, .simple  li, .simple  p, .simple  ul, .simple  ol {
  margin-top: 0;
  margin-bottom: 0;
/*   background: magenta; */
}
dl.simple, dl.compact, dl.simple > dd, dl.compact > dd {
  margin-top: 0;
  margin-bottom: 0;
/*   background: lightgreen; */
}

/* space around paragraphs */
dl > dd p:first-child, td > p {
  margin: 0;
}

/* Sidebar */
/* ------- */

div.sidebar {
  margin-right: -5%;
}

/* Special definition lists */
/* ======================== */

/* bold definition term on the same line as the label */
dl.field-list > dt, dl.option-list > dt, dl.docinfo > dt,
dl.footnote > dt, dl.citation > dt, dl.description > dt {
  clear: left;
  float: left;
  margin: 0;
  padding: 0;
  padding-right: 0.5em;
  font-weight: bold;
}
/* except for these */
dl.option-list > dt, dl.footnote > dt {
  font-weight: normal;
}



/* Field Lists */
/* ----------- */

/* field names followed by a colon */
dl.field-list > dt:after, dl.docinfo > dt:after {
  content: ":";
}

/* Offset for field content (corresponds to the --field-name-limit option) */
dl.field-list > dd {
  margin-left:  9em; /* ca. 14 chars in the test examples */
  padding-left: 0.5em;
}

/* start field-body on a new line after long field names */
dl.field-list > dd p {
  width: 100%;
/*   display: inline-block; */
/*   background: yellow; */
}

dl.field-list > dd > p:first-child,
/* dl.field-list > dd > ol:first-child, */
/* dl.field-list > dd > ul:first-child, */
dl.field-list > dd > dl:first-child {
  display: inline-block;
}

/* field-list variants:: */

/* example for custom field-name width */
dl.field-list.narrow > dd {
  margin-left: 5em;
}

/* start field-body on same line after long field names */
dl.field-list.run-in > dd p {
  display: block;
}

/* wrap or truncate long field names */
dl.field-list.fix-labelwidth > dt {
  width: 8em; /* set to dl.field-list > dd margin-left - padding-left */
  overflow: hidden;
}
dl.field-list.fix-labelwidth > dd:after {
  /* a "stopper" to prevent next dd floating up too far */
  content: '';
  display: block;
  clear: left;
}

/* docinfo */

dl.docinfo > dd {
  margin-left: 8em;
/*   margin-bottom: 0.5em; */
}


/* option list */

dl.option-list {
  margin-left: 1em;
  padding-left: 0;
}

dl.option-list > dd {
  margin-left: 8em;
  /* margin-bottom: 0.5em; */
}

/* start description on a new line after long options */
dl.option-list > dd p {
  width: 100%;
  display: inline-block;
}

/* footnotes */

a.footnote-reference, a.fn-backref {
  text-decoration: inherit; /* do not underline footnote links */
}

dl.footnote {
  /* line on the left */
  padding-left: 1ex;
  border-left: solid;
  border-left-width: thin;
  /* border-color: black; */
}

/* paragraph on same line as backrefs */
dd > em {
/*   background: green; */
  float: left;
  margin-right: 1ex
}


/*
Ordered List (Enumeration)
--------------------------

Use counters to replace the deprecated start attribute. Make sure the
resulting list resembles the list-style 'outside' with a hanging indent.
*/

/* New ordered list: reset counter, suppress the default label */
ol, ol.arabic, ol.loweralpha, ol.upperalpha, 
ol.lowerroman, ol.upperroman {
  counter-reset: item;
  list-style: none
}

/* Set the negative indent of the list label as feature of the list item */
ol > li {
  text-indent: -40px; /* Mozillas default indent */
}
/* reset for child elements */
ol > li > * {
  text-indent: 0px;
  text-indent: 0;
  margin-top: 0;
  /* background: lightgreen; */
}

/* Label */
ol > li:before {
  /* increment and typeset counter(s), */
  counter-increment: item;
  content: counter(item) ".";
  /* display next to the content (aligned top-right), */
  display: inline-block;
  text-align: right;
  vertical-align: top;
  /* sum must match ol>li {text-indent:} (40px is Mozillas default) */
  width: 35px;
  padding-right: 5px;
/*   background: yellow; */
}

/* The list item's first line starts next to the label, without indent */
ol > li > p:first-child,
ol > li > ol:first-child,
ol > li > ul:first-child,
ol > li > dl:first-child {
  display: inline-block;
  /* background: lightblue; */
}

/* default separator variants */
ol.loweralpha > li:before {
  content: counter(item, lower-alpha) ")";
}
ol.upperalpha  > li:before {
  content: counter(item, upper-alpha) ".";
}
ol.lowerroman  > li:before {
  content: "(" counter(item, lower-roman) ")";
}
ol.upperroman  > li:before {
  content: counter(item, upper-roman) ")";
}
/* nested counters (1, 1.1, 1.1.1, etc) */
/* nested enumerated lists "inherit" the class attribute, other lists not */
ol.nested > li:before, ol.nested  ol > li:before {
  content: counters(item, ".") " ";
}

/* lists nested in definition list */

dd > ul, dd > ol {
  padding-left: 0pt;
}

/* TODO: prefix, suffix? */

/* smaller font for super- and subscripts */
/* sub, sup {font-size: 70%;} */ /* Mozilla default is `smaller` */


/* Tables */
/* ====== */

/* margins and borders for "normal" tables */
table {
  margin-top: 0.5em ;
  margin-bottom: 0.5em;
/*   border-style: outset; */
  border-style: solid;
  border-color: silver;
  border-width: thin;
  border-collapse: collapse;
}
blockquote > table {
  margin-top: 0em ;
  margin-bottom: 0em;
}

td, th {
  border-style: solid;
  border-width: thin;
  border-color: silver;
  /* text-align: left; */
  padding: 0 1ex;
}

td > p:first-child, th > p:first-child {
  margin-top: 0;
}
td > p, th > p {
  margin-bottom: 0;
}

/* no borders for "borderless" tables */
table.borderless, table.borderless * {
  border-style: none;
}

/* "booktabs" style (no vertical lines) */
table.booktabs {
  border: 0;
  border-top: 2px solid;
  border-bottom: 2px solid;
}

table.booktabs * {
  border: 0;
}
table.booktabs th {
  border-bottom: thin solid;
}

table > caption {
  text-align: left;
/*   padding: 2em 0 1em 0; */
}

/* numbered tables*/
table.numbered > caption:before {
  counter-increment: table; /* defined/re-set in body */
  content: "Table " counter(table) ": ";
  font-weight: bold;
}


/* literal text
   ------------
*/
/* whitespace and wrapping in inline literals */
/* possible values: normal, nowrap, pre, pre-wrap, pre-line */
tt.literal {
  white-space: pre-wrap;
}

/* /* compensate for initial line-break (which is literal with XHTML 1.1) */ */
/* pre.literal-block, pre.doctest-block {				     */
/*   margin-top: 0em ;							     */
/* }									     */

/* Table of Contents */

/* don't indent like a topic */
div.topic.contents {
  margin: 0;
}
/* div.topic.contents ul { */
/*   list-style: none;	   */
/*   }			   */

div.topic.contents a {
  text-decoration: none; /* no underline for links */
}

/* section numbers */

span.sectnum {
  padding-right: 1ex;
}

/* admonitions */

/* no padding for top and bottom */
div.admonition, div.attention, div.caution, div.danger, div.error,
div.hint, div.important, div.note, div.tip, div.warning {
  padding: 0px 1em }

</style>
</head>
<body>
<div class="document" id="greek-text-with-the-lgr-font-encoding">
<h1 class="title">Greek text with the LGR font encoding</h1>

<dl class="docinfo simple">
<dt class="copyright">Copyright</dt>
<dd class="copyright">© 2010 Günter Milde</dd>
<dt>Licence</dt>
<dd><p>This work may be distributed and/or modified under the
conditions of the <a class="reference external" href="http://www.latex-project.org/lppl.txt">LaTeX Project Public License</a>, either
version&nbsp;1.3 of this license or any later version.</p>
</dd>
</dl>
<div class="abstract topic">
<p class="topic-title first">Abstract</p>
<p>The LGR font encoding is the de-facto standard for Greek
typesetting with (8-bit) LaTeX. However, the encoding definition
file that ships with <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/babel.html">babel</a> misses many of the definitions common
since the advent of the NFSS <a class="citation-reference" href="#fntguide" id="id1">[fntguide]</a>.</p>
<p>The <cite>lgrx</cite> bundle provides packages and definitions for
typesetting Greek text with fonts in the LGR encoding.  It works
for both, monotonic and polytonic Greek, independent of the
<cite>babel</cite> package.</p>
<p>The bundle is available from <a class="reference external" href="http://www.ctan.org/tex-archive/macros/latex/contrib/lgrx">CTAN</a> and included in TeXLive
2012. Development takes place at the <a class="reference external" href="http://milde.users.sourceforge.net/LGR/">Sourceforge</a>.</p>
</div>
<!-- -*- rst-mode -*- -->
<div class="note">
<p class="admonition-title">Note</p>
<p>The TeXLive 2012 pre-release contains the Unicode definition file
<tt class="literal">lgrenc.dfu</tt> in the documentation instead of the TEXPATH. To enable
<a class="reference internal" href="#greek-unicode-support">Greek Unicode support</a>, update via <cite>tlmgr</cite> or place a copy in the
TEXPATH «by hand».
See <a class="reference external" href="http://tug.org/pipermail/tex-live/2012-June/031757.html">http://tug.org/pipermail/tex-live/2012-June/031757.html</a></p>
</div>
<div class="contents topic" id="contents">
<p class="topic-title first">Contents</p>
<ul class="simple">
<li><p><a class="reference internal" href="#manifest" id="id15">Manifest</a></p></li>
<li><p><a class="reference internal" href="#motivation" id="id16">Motivation</a></p>
<ul>
<li><p><a class="reference internal" href="#greek-font-encodings" id="id17">Greek font encodings</a></p>
<ul>
<li><p><a class="reference internal" href="#unicode" id="id18">Unicode</a></p></li>
<li><p><a class="reference internal" href="#t7" id="id19">*T7</a></p></li>
<li><p><a class="reference internal" href="#lgr" id="id20">LGR</a></p></li>
<li><p><a class="reference internal" href="#ot7" id="id21">*OT7</a></p></li>
</ul>
</li>
<li><p><a class="reference internal" href="#problems-with-the-default-setup" id="id22">Problems with the default setup</a></p></li>
</ul>
</li>
<li><p><a class="reference internal" href="#components-of-the-lgrx-bundle" id="id23">Components of the <cite>lgrx</cite> bundle</a></p>
<ul>
<li><p><a class="reference internal" href="#comprehensive-font-encoding-definition-file" id="id24">Comprehensive font encoding definition file</a></p></li>
<li><p><a class="reference internal" href="#greek-unicode-support" id="id25">Greek Unicode support</a></p></li>
<li><p><a class="reference internal" href="#macros-for-greek-in-text" id="id26">Macros for Greek in text</a></p></li>
<li><p><a class="reference internal" href="#generic-macros-for-greek-letters" id="id27">Generic macros for Greek letters</a></p></li>
</ul>
</li>
<li><p><a class="reference internal" href="#references" id="id28">References</a></p></li>
</ul>
</div>
<div class="section" id="manifest">
<h1><a class="toc-backref" href="#id15">Manifest</a></h1>
<p>The lgrx bundle consists of the following LaTeX files:</p>
<dl class="docutils">
<dt>LaTeX files:</dt>
<dd><dl class="field-list simple">
<dt>lgrxenc.def</dt>
<dd><p>comprehensive LGR encoding definition file</p>
</dd>
<dt>lgrenc.dfu</dt>
<dd><p>support for Unicode input</p>
</dd>
<dt>textalpha.sty</dt>
<dd><p><tt class="literal"><span class="pre">\text...</span></tt> macros for Greek letters in non-Greek text</p>
</dd>
<dt>alphabeta.sty</dt>
<dd><p>Greek letters with <tt class="literal">\alpha</tt>, <tt class="literal">\beta</tt>, ... in text
and math</p>
</dd>
</dl>
<dl class="docutils">
<dt>Literal sources:</dt>
<dd><p><a class="reference external" href="lgrxenc.def.html">lgrxenc.def.html</a>, <a class="reference external" href="lgrenc.dfu.html">lgrenc.dfu.html</a>,
<a class="reference external" href="textalpha.sty.html">textalpha.sty.html</a>, <a class="reference external" href="alphabeta.sty.html">alphabeta.sty.html</a></p>
</dd>
</dl>
</dd>
<dt>Documentation and test documents:</dt>
<dd><dl class="run-in field-list simple">
<dt><a class="reference external" href="lgrx.pdf">lgrx.pdf</a></dt>
<dd><p>user documentation, source <a class="reference external" href="lgrx.tex">lgrx.tex</a></p>
</dd>
<dt><a class="reference external" href="greekhyperref.pdf">greekhyperref.pdf</a></dt>
<dd><p><cite>Greek script in PDF metadata</cite>,
source <a class="reference external" href="greekhyperref.tex">greekhyperref.tex</a></p>
</dd>
<dt><a class="reference external" href="greek-unicode.pdf">greek-unicode.pdf</a></dt>
<dd><p><cite>Greek Unicode with lgrenc.dfu</cite>,
source <a class="reference external" href="greek-unicode.tex">greek-unicode.tex</a></p>
</dd>
<dt><a class="reference external" href="lgrxenc-test.pdf">lgrxenc-test.pdf</a></dt>
<dd><p>source <a class="reference external" href="lgrxenc-test.tex">lgrxenc-test.tex</a></p>
</dd>
<dt><a class="reference external" href="textalpha-test.pdf">textalpha-test.pdf</a></dt>
<dd><p>source <a class="reference external" href="textalpha-test.tex">textalpha-test.tex</a></p>
</dd>
<dt><a class="reference external" href="alphabeta-test.pdf">alphabeta-test.pdf</a></dt>
<dd><p>source <a class="reference external" href="alphabeta-test.tex">alphabeta-test.tex</a></p>
</dd>
</dl>
</dd>
</dl>
</div>
<div class="section" id="motivation">
<h1><a class="toc-backref" href="#id16">Motivation</a></h1>
<div class="section" id="greek-font-encodings">
<h2><a class="toc-backref" href="#id17">Greek font encodings</a></h2>
<div class="section" id="unicode">
<h3><a class="toc-backref" href="#id18">Unicode</a></h3>
<p>The Unicode standard allows fonts that comprise glyphs from (almost) all
known scripts. With the TeX engines XeTeX or LuaTeX, typesetting Greek with
LaTeX is as easy as finding a font that contains Greek letters and setting
it up with <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/fontspec.html">fontspec</a>.  Beware, that you must not use the <tt class="literal">greek</tt> or
<tt class="literal">polutonikogreek</tt> options of the <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/babel.html">babel</a> package. The <cite>babel</cite> replacement
<a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/polyglossia.html">polyglossia</a> provides Greek language support for XeLaTeX/LuaLaTeX.
If you go this way, you don't need the lgrx bundle.</p>
</div>
<div class="section" id="t7">
<h3><a class="toc-backref" href="#id19">*T7</a></h3>
<p>The <a class="citation-reference" href="#encguide" id="id4">[encguide]</a> reserves the name T7 for a Greek <cite>standard font encoding</cite>.
However, up to now, there is no agreement on an implementation because the
restrictions for general text encodings are too severe for typesetting
polytonic Greek.</p>
</div>
<div class="section" id="lgr">
<h3><a class="toc-backref" href="#id20">LGR</a></h3>
<p>The LGR font encoding is the de-facto standard for typesetting Greek with
(8-bit) LaTeX. Fonts in this encoding include the <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/cbgreek-complete.html">CB fonts</a> (matching CM),
<a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/grtimes.html">grtimes</a> (Greek Times), <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/kerkis.html">Kerkis</a> (matching URW Bookman), and the <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/gfs.html">GFS font
collection</a>. Setup of these fonts as Greek variant to matching Latin fonts
is facilitated by the <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/substitutefont.html">substitutefont</a> package.</p>
<p>The LGR font encoding generates Greek characters via an ASCII
transliteration. This enables simple input with a Latin keyboard.
Characters with diacritics are selected by ligature definitions in the
font (see <a class="citation-reference" href="#greek-usage" id="id5">[greek-usage]</a>, <a class="citation-reference" href="#teubner-doc" id="id6">[teubner-doc]</a>, <a class="citation-reference" href="#cbfonts" id="id7">[cbfonts]</a>).</p>
</div>
<div class="section" id="ot7">
<h3><a class="toc-backref" href="#id21">*OT7</a></h3>
<p>The name LGR does not reflect status of this font encoding due to historical
reasons. <a class="citation-reference" href="#encguide" id="id8">[encguide]</a> classifies encodings starting with <cite>L</cite> as &quot;local&quot;.
Indeed, LGR started as a local encoding for the <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/cbgreek-complete.html">CB fonts</a> by Claudio
Beccari. Later, Apostolos Syropoulos advanced it to the default font
encoding for the <cite>babel</cite> package's <tt class="literal">greek</tt> option.  A better name would be
OT7:</p>
<ul class="simple">
<li><p>It is an 'old' encoding.</p></li>
<li><p>It implements a Latin transcription for a non-Latin script like the
OT2 encoding.</p></li>
<li><p>It is not confined to 128 bit but OT4 shows that this is no
absolute requirement for an <cite>OT</cite> encoding.</p></li>
</ul>
<p>However, due to the fact that the LGR font encoding has been used under its
current name for a long time, the name will not change for compatibility
reasons.</p>
</div>
</div>
<div class="section" id="problems-with-the-default-setup">
<h2><a class="toc-backref" href="#id22">Problems with the default setup</a></h2>
<p>The <cite>lgrx</cite> budle adresses a set of problems with the LGR font encoding as
set up by <cite>babel</cite>:</p>
<ol class="arabic">
<li><p>Ligatures with prefix notation prevent kerning (see the example document
<a class="reference external" href="lgrxenc-test.pdf">lgrxenc-test.pdf</a> and <a class="citation-reference" href="#teubner-doc" id="id9">[teubner-doc]</a>).</p></li>
<li><p>Sub-optimal results with the standard accent macros:</p>
<ul class="simple">
<li><p>no combined accents,</p></li>
<li><p>accents above (instead of before) capital letters,</p></li>
<li><p>pre-composed characters are not used.</p></li>
</ul>
</li>
<li><p>The tilde character <tt class="literal">~</tt> is used for a non-breaking space by
default. Therefore the transliteration for the <em>perispomeni</em> accent is
not available without re-definition of this character.<a class="footnote-reference" href="#tildehack" id="id10"><sup>1</sup></a></p></li>
<li><p>The <tt class="literal">polutonikogreek</tt> <cite>babel</cite> option redefines both, <tt class="literal">~</tt> and <tt class="literal">\~</tt>
to produce accents via input ligatures (restricted to the language
setting instead of the font encoding). This prevents the placing of a
tilde-accent on non-supported characters like in <em>niño</em> if the language
is set to polytonic Greek, even if <tt class="literal">\textlatin</tt> is used.<a class="footnote-reference" href="#poluhack" id="id11"><sup>2</sup></a></p></li>
<li><p>There is no Unicode support with <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/inputenc.html">inputenc</a>'s <tt class="literal">utf8</tt> option.</p>
<p>The <cite>ucs</cite> package contributed by Dominique Unruh provides Unicode support
with the <tt class="literal">utf8x</tt> option. A babel patch by Werner Lemberg for Greek
Unicode support <a class="citation-reference" href="#lemberg2008" id="id12">[lemberg2008]</a> never got applied.)</p>
</li>
<li><p>The LGR transliteration does not work for PDF metadata.</p></li>
</ol>
<dl class="footnote"><dt class="label">1</dt>
<dd id="tildehack">
<em>(<a class="fn-backref" href="#id10">1</a>, <a class="fn-backref" href="#id13">2</a>)</em> <p>Problem 3 can be solved by the simple one-liner</p>
<pre class="literal-block">\DeclareTextSymbol{\~}{LGR}{126}
</pre>
<p>which results in <tt class="literal">\~</tt> inserting a plain tilde character if the
font encoding is LGR.</p>
<p class="last">Drawback: you cannot place a ~-accent on Greek characters except the
ones supported by an input ligature.</p>
</dd>
<dt class="label"><a class="fn-backref" href="#id11">2</a></dt>
<dd id="poluhack">
<p class="first">Fortunately, LaTeX saves copies of the accent macros: <tt class="literal">\~</tt>
is an alias of <tt class="literal">\a~</tt> (which is an alias of <tt class="literal">\&#64;tabacckludge~</tt>), so it
can be restored after loading <cite>babel</cite> with:</p>
<pre class="literal-block">\addto\extraspolutonikogreek{\renewcommand*{\~}{\a~}}
\addto\extrasgreek{\renewcommand*{\~}{\a~}}
</pre>
<p class="last">With this addition, both the comprehensive font encoding definitions and
the workaround<a class="footnote-reference" href="#tildehack" id="id13"><sup>1</sup></a> also work with the <tt class="literal">polutonikogreek</tt>
<cite>babel</cite> option.</p>
</dd>
</dl>
</div>
</div>
<div class="section" id="components-of-the-lgrx-bundle">
<h1><a class="toc-backref" href="#id23">Components of the <cite>lgrx</cite> bundle</a></h1>
<p>The <cite>lgrx</cite> bundle comprises tools that help typesetting Greek script
with (8-bit) LaTeX in Greek as well as multi-lingual documents.</p>
<div class="section" id="comprehensive-font-encoding-definition-file">
<h2><a class="toc-backref" href="#id24">Comprehensive font encoding definition file</a></h2>
<p><tt class="literal">lgrxenc.def</tt> is an alternative to the rudimentary LGR encoding
definition file<a class="footnote-reference" href="#fdf" id="id14"><sup>3</sup></a> <tt class="literal">lgrenc.def</tt> which comes with <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/babel.html">babel</a>'s Greek
support. It defines macros for Greek characters the LGR font encoding that
select pre-composed glyphs if possible and places the diacritics according
to Greek typesetting rules else. Combined accents can be specified as
backslash + transliteration (<tt class="literal"><span class="pre">\~&gt;a</span></tt>) or iteratively (<tt class="literal"><span class="pre">\~\&gt;{a}</span></tt>).</p>
<p>For usage and documentation see the literal source <a class="reference external" href="lgrxenc.def.html">lgrxenc.def.html</a>, the
user manual <a class="reference external" href="lgrx.pdf">lgrx.pdf</a>, and the test document <a class="reference external" href="lgrxenc-test.pdf">lgrxenc-test.pdf</a>.</p>
<dl class="footnote"><dt class="label"><a class="fn-backref" href="#id14">3</a></dt>
<dd id="fdf">
<p class="first last">See [<a class="reference internal" href="#fntguide">fntguide</a>, section&nbsp;5] for a definition of <cite>encoding definition
files</cite>.</p>
</dd>
</dl>
</div>
<div class="section" id="greek-unicode-support">
<h2><a class="toc-backref" href="#id25">Greek Unicode support</a></h2>
<p><tt class="literal">lgrenc.dfu</tt> provides standards-compatible UTF-8 support for Greek based
on the comprehensive font encoding definitions. It is compatible with
<a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/hyperref.html">hyperref</a> enabling Greek characters in PDF metadata without the need for
<tt class="literal">\texorpdfstring</tt>.</p>
<p>See the literal source <a class="reference external" href="lgrenc.dfu.html">lgrenc.dfu.html</a> and the test document
<a class="reference external" href="greek-unicode.pdf">greek-unicode.pdf</a>.</p>
</div>
<div class="section" id="macros-for-greek-in-text">
<h2><a class="toc-backref" href="#id26">Macros for Greek in text</a></h2>
<p><tt class="literal">textalpha.sty</tt> defines <tt class="literal">\textalpha</tt>, <tt class="literal">\textbeta</tt> ... macros for Greek
letters in text that work in any font encoding and alias macros for
compatibility with existing packages. With this package, Unicode input of
Greek letters works in any font encoding, too.</p>
<p id="limitations">However, in any font encoding except LGR:</p>
<ul class="simple">
<li><p>there is no kerning between Greek characters,</p></li>
<li><p>composition of diacritics (like <tt class="literal">\Dasia\Tonos</tt>) fails,</p></li>
<li><p>accent macros do not select precomposed characters
(pre-composed Unicode literals work fine).</p></li>
</ul>
<p>See the literal source <a class="reference external" href="textalpha.sty.html">textalpha.sty.html</a> and <a class="reference external" href="textalpha-test.pdf">textalpha-test.pdf</a> for
details on usage, limitations, and recommended workarounds.</p>
</div>
<div class="section" id="generic-macros-for-greek-letters">
<h2><a class="toc-backref" href="#id27">Generic macros for Greek letters</a></h2>
<p><tt class="literal">alphabeta.sty</tt> allows you to use <tt class="literal">\alpha</tt>, <tt class="literal">\beta</tt>, ... in both, text
and math. For this, the math macros are redefined with the help of
<tt class="literal">\TextOrMath</tt> from the standard package <a class="reference external" href="http://mirror.ctan.org/help/Catalogue/entries/fixltx2e.html">fixltx2e</a>.</p>
<p>See the literal source <a class="reference external" href="alphabeta.sty.html">alphabeta.sty.html</a> and the test document
<a class="reference external" href="alphabeta-test.pdf">alphabeta-test.pdf</a>.</p>
</div>
</div>
<div class="section" id="references">
<h1><a class="toc-backref" href="#id28">References</a></h1>
<dl class="citation"><dt class="label"><a class="fn-backref" href="#id1">[fntguide]</a></dt>
<dd id="fntguide">
<p class="first last">LaTeX3 Project Team, <cite>LaTeX 2ε font selection</cite>, 2005.
<a class="reference external" href="http://mirror.ctan.org/macros/latex/doc/fntguide.pdf">http://mirror.ctan.org/macros/latex/doc/fntguide.pdf</a></p>
</dd>
</dl>
<dl class="citation"><dt class="label">[encguide]</dt>
<dd id="encguide">
<em>(<a class="fn-backref" href="#id4">1</a>, <a class="fn-backref" href="#id8">2</a>)</em> <p class="last">Frank Mittelbach, Robin Fairbairns, Werner Lemberg,
LaTeX3 Project Team, <cite>LaTeX font encodings</cite>, 2006.
<a class="reference external" href="http://mirror.ctan.org/macros/latex/doc/encguide.pdf">http://mirror.ctan.org/macros/latex/doc/encguide.pdf</a></p>
</dd>
</dl>
<dl class="citation"><dt class="label"><a class="fn-backref" href="#id5">[greek-usage]</a></dt>
<dd id="greek-usage">
<p class="first last">Apostolos Syropoulos, <cite>Writing Greek with the greek option
of the babel package</cite>, 1997.
<a class="reference external" href="http://www.tug.org/texlive/Contents/live/texmf-dist/doc/generic/babel/greek-usage.pdf">http://www.tug.org/texlive/Contents/live/texmf-dist/doc/generic/babel/greek-usage.pdf</a></p>
</dd>
</dl>
<dl class="citation"><dt class="label"><a class="fn-backref" href="#id7">[cbfonts]</a></dt>
<dd id="cbfonts">
<p class="first last">Claudio Beccari, <cite>The CB Greek fonts</cite>, Εὔτυπον, τεῦχος № 21, 2008.
<a class="reference external" href="http://www.eutypon.gr/eutypon/pdf/e2008-21/e21-a01.pdf">http://www.eutypon.gr/eutypon/pdf/e2008-21/e21-a01.pdf</a></p>
</dd>
</dl>
<dl class="citation"><dt class="label">[teubner-doc]</dt>
<dd id="teubner-doc">
<em>(<a class="fn-backref" href="#id6">1</a>, <a class="fn-backref" href="#id9">2</a>)</em> <p class="last">Claudio Beccari, <tt class="literal">teubner.sty</tt>
<cite>An extension to the greek option of the babel package</cite>, 2011.
<a class="reference external" href="http://mirror.ctan.org/macros/latex/contrib/teubner/teubner-doc.pdf">http://mirror.ctan.org/macros/latex/contrib/teubner/teubner-doc.pdf</a></p>
</dd>
</dl>
<dl class="citation"><dt class="label"><a class="fn-backref" href="#id12">[lemberg2008]</a></dt>
<dd id="lemberg2008">
<p class="first last">Werner Lemberg,
<cite>Unicode support for the Greek LGR encoding</cite>, Εὔτυπον, τεῦχος № 20, 2008.
<a class="reference external" href="http://www.eutypon.gr/eutypon/pdf/e2008-20/e20-a03.pdf">http://www.eutypon.gr/eutypon/pdf/e2008-20/e20-a03.pdf</a></p>
</dd>
</dl>
</div>
</div>
</body>
</html>