This 'switch' control statement is actually a GNU extension, so it is not portable to other awk implementations.
This patch replace them with the traditional 'if...else' sequence which will work everywhere. Signed-off-by: Christophe CURIS <[email protected]> --- script/generate-txt-from-texi.sh | 275 ++++++++++++++++----------------------- 1 file changed, 112 insertions(+), 163 deletions(-) diff --git a/script/generate-txt-from-texi.sh b/script/generate-txt-from-texi.sh index 664e41e..59821f1 100755 --- a/script/generate-txt-from-texi.sh +++ b/script/generate-txt-from-texi.sh @@ -217,17 +217,14 @@ function set_variable(line, local_idx, local_name, local_value) { function write_line(line) { if (!cond_state) { return; } - switch (redirect_out) { - case "no": + if (redirect_out == "no") { print line; line_number++; - break; - case "copyright": + } else if (redirect_out == "copyright") { copyright_lines[copyright_count++] = line; - break; - default: + } else { report_error("redirect output mode \"" redirect_out "\" is not supported (line " NR ")"); } } @@ -466,14 +463,12 @@ function start_item_list(mark) { # Generate Underline string with the specified length function gen_underline(id, len, local) { - switch (id) { - case -1: local = " "; break; - case 1: local = "**********"; break; - case 2: local = "=========="; break; - case 3: local = "----------"; break; - case 4: local = ".........."; break; - default: local = "~~~~~~~~~~"; break; - } + if (id == -1) { local = " "; } else + if (id == 1) { local = "**********"; } else + if (id == 2) { local = "=========="; } else + if (id == 3) { local = "----------"; } else + if (id == 4) { local = ".........."; } + else { local = "~~~~~~~~~~"; } while (length(local) < len) { local = local local; } @@ -483,17 +478,16 @@ function gen_underline(id, len, local) { # Generate text for an URL link function generate_url_reference(args, local_nb, local_arr) { local_nb = split(args, local_arr, ","); - switch (local_nb) { - case 1: + if (local_nb == 1) { return local_arr[1]; - case 2: + } else if (local_nb == 2) { return execute_commands(local_arr[2]) " (" local_arr[1] ")"; - case 3: + } else if (local_nb == 3) { return execute_commands(local_arr[3]); - default: + } else { report_error("bad number of argument " local_nb " for @uref at line " NR); } } @@ -507,24 +501,21 @@ function generate_author_line(name, local_offset, local_attach_to_par) generate_paragraph(); - switch (par_mode) { - case "titlepage": + if (par_mode == "titlepage") { name = "-- " name " --"; local_offset = int((76 - length(name)) / 2); if (local_offset < 2) { local_offset = 2; } write_line(""); write_line(gen_underline(-1, local_offset) name); - break; - case "quotation": + } else if (par_mode == "quotation") { name = "-- " name; local_offset = int((line_length - length(line_prefix) - length(name)) * 2/3); if (local_offset < length(line_prefix) + 2) { local_offset = length(line_prefix) + 2; } if (!local_attach_to_par) { write_line(""); } write_line(line_prefix gen_underline(-1, local_offset) name); - break; - default: + } else { report_error("command @author used in an inappropriate mode (" par_mode ") at line " NR); } } @@ -546,8 +537,7 @@ function generate_paragraph( local_prefix, local_line, local_length, local_line = line_prefix; - switch (par_mode) { - case "list": + if (par_mode == "list") { if (list_item_wants_sepline && !list_is_first_item) { write_line(""); } @@ -558,25 +548,21 @@ function generate_paragraph( local_prefix, local_line, local_length, while (length(local_prefix) < 5) { local_prefix = " " local_prefix; } local_line = substr(local_line, 1, length(local_line) - 5) local_prefix; } - break; - case "titlepage": + } else if (par_mode == "titlepage") { write_line(""); - break; - case "par": + } else if (par_mode == "par") { write_line(""); if (par_indent) { local_line = local_line " "; } - break; - case "quotation": + } else if (par_mode == "quotation") { write_line(""); # There is no extra indentation of paragraphs in this mode - break; - default: + } else { report_error("paragraph mode \"" par_mode "\" is not supported in generate_paragraph (line " NR ")"); } @@ -675,103 +661,81 @@ function execute_commands(line, replaced_line, command) { sub(/^[ \t]+/, "", line); } - # Process the command - switch (command) { - # Commands generating "special" characters ################################# - case "@": + if (command == "@") { replaced_line = replaced_line "@"; - break; - case "bullet": + } else if (command == "bullet") { replaced_line = replaced_line "*"; - break; - case "copyright": + } else if (command == "copyright") { replaced_line = replaced_line "(c)"; - break; - case "minus": + } else if (command == "minus") { replaced_line = replaced_line "-"; - break; - case "registeredsymbol": + } else if (command == "registeredsymbol") { replaced_line = replaced_line "(r)"; - break; - case "today": + } else if (command == "today") { # Make sure the date will be in english (we use "C" because it not certain # that the English locale is enabled on the machine of the user) replaced_line = replaced_line "'"`LANG=C date '+%d %B %Y' | sed -e 's,^0,,' `"'"; - break; # Commands to display text in a special style ############################## - case "b": # bold + } else if (command == "b") { # bold line = "*" cmdargs "*" line; - break; - case "cite": - case "emph": + } else if ((command == "cite") || + (command == "emph")) { line = cmdargs line; - break; - case "code": - case "command": - case "env": - case "option": - case "var": + } else if ((command == "code") || + (command == "command") || + (command == "env") || + (command == "option") || + (command == "var")) { # Should be in fixed-spacing font; printed with single-quotes line = "'\''" cmdargs "'\''" line; - break; - case "i": # italic + } else if (command == "i") { # italic line = "_" cmdargs "_" line; - break; - case "email": + } else if (command == "email") { line = "<" cmdargs ">" line; - break; - case "file": + } else if (command == "file") { line = "\"" cmdargs "\"" line; - break; - case "key": + } else if (command == "key") { line = "<" cmdargs ">" line; - break; - case "r": # roman font + } else if (command == "r") { # roman font line = cmdargs line; - break; - case "sc": + } else if (command == "sc") { # Small-Caps, keep as-is in plain text line = cmdargs line; - break; - case "t": # typewriter-like + } else if (command == "t") { # typewriter-like line = cmdargs line; - break; - case "uref": + } else if (command == "uref") { replaced_line = replaced_line generate_url_reference(cmdargs); - break; # Variable and Conditional commands ######################################## - case "value": + } else if (command == "value") { if (variable[cmdargs] == "") { report_error("variable '" cmdargs "' is unknow, for @value at line " NR); } line = variable[cmdargs] line; - break; # Miscelleanous commands ################################################### - case "c": + } else if (command == "c") { # Comments: ignore everything to the end of line line = ""; - break; - default: + } else { report_error("unknow command @" command " at line " NR); } @@ -785,49 +749,41 @@ function process_end(line) { end_conditional(line); return; } - switch (line) { - case "copying": + if (line == "copying") { generate_paragraph(); redirect_out = "no"; - break; - case "example": + } else if (line == "example") { generate_paragraph(); par_mode_pop("example"); par_indent = 1; - break; - case "flushleft": + } else if (line == "flushleft") { generate_paragraph(); par_mode_pop(par_mode); par_indent = 1; - break; - case "flushright": + } else if (line == "flushright") { generate_paragraph(); par_mode_pop(par_mode); par_indent = 1; - break; - case "itemize": + } else if (line == "itemize") { generate_paragraph(); par_mode_pop("list"); par_indent = 1; - break; - case "quotation": + } else if (line == "quotation") { generate_paragraph(); par_mode_pop("quotation"); par_indent = 1; - break; - case "titlepage": + } else if (line == "titlepage") { generate_page_break(); par_mode_pop("titlepage"); par_indent = 0; - break; - default: + } else { report_error("unknow command @end " line " at line " NR); } } @@ -877,30 +833,28 @@ BEGIN { line = substr($0, idx + 1 + RLENGTH); sub(/^[ \t]+/, "", line); - switch (command) { - # Commands for structuring the document #################################### - case "chapter": + if (command == "chapter") { new_section(1, execute_commands(line), 1); next; - case "section": + } else if (command == "section") { new_section(2, execute_commands(line), 1); next; - case "subsection": + } else if (command == "subsection") { new_section(3, execute_commands(line), 1); next; - case "subsubsection": + } else if (command == "subsubsection") { new_section(4, execute_commands(line), 1); next; - case "node": + } else if (command == "node") { # We ignore nodes completely, this is for the "info" format only next; - case "top": + } else if (command == "top") { # This is mandatory for "info" format, but useless for plain text if (top_was_found > 0) { report_error("command @top at line " NR " but was already found at line " top_was_found); @@ -908,35 +862,35 @@ BEGIN { top_was_found = NR; next; - case "unnumbered": + } else if (command == "unnumbered") { new_section(1, execute_commands(line), 0); next; # Commands for content in the Title Page ################################### - case "author": + } else if (command == "author") { generate_author_line(execute_commands(line)); next; - case "subtitle": + } else if (command == "subtitle") { generate_title_page_subtitle(execute_commands(line)); next; - case "title": + } else if (command == "title") { generate_title_page_title(execute_commands(line)); next; # Commands changing the way paragraph are displayed ######################## - case "copying": + } else if (command == "copying") { generate_paragraph(); redirect_out = "copyright"; copyright_count = 0; next; - case "end": + } else if (command == "end") { process_end(line); next; - case "example": + } else if (command == "example") { if (cond_state) { generate_paragraph(); write_line(""); @@ -945,7 +899,7 @@ BEGIN { } next; - case "flushleft": + } else if (command == "flushleft") { if (cond_state) { generate_paragraph(); par_mode_push(par_mode); @@ -954,7 +908,7 @@ BEGIN { } next; - case "flushright": + } else if (command == "flushright") { if (cond_state) { generate_paragraph(); par_mode_push(par_mode); @@ -963,19 +917,19 @@ BEGIN { } next; - case "itemize": + } else if (command == "itemize") { if (cond_state) { generate_paragraph(); start_item_list(line); } next; - case "menu": + } else if (command == "menu") { generate_paragraph(); discard_block(command); next; - case "quotation": + } else if (command == "quotation") { if (cond_state) { generate_paragraph(); par_mode_push("quotation"); @@ -993,12 +947,12 @@ BEGIN { } next; - case "titlepage": + } else if (command == "titlepage") { generate_title_page(); next; # Commands generating text automacitally ################################### - case "contents": + } else if (command == "contents") { if (cond_state) { generate_paragraph(); write_line(""); @@ -1007,7 +961,7 @@ BEGIN { } next; - case "insertcopying": + } else if (command == "insertcopying") { if (cond_state) { generate_paragraph(); # The copying block was already formatted, we just have to print it as-is @@ -1017,11 +971,11 @@ BEGIN { } next; - case "page": + } else if (command == "page") { generate_page_break(); next; - case "sp": + } else if (command == "sp") { if (cond_state) { generate_paragraph(); while (line > 0) { @@ -1031,7 +985,7 @@ BEGIN { } next; - case "vskip": + } else if (command == "vskip") { # Silently ignore, this is just for TeX if (cond_state) { generate_paragraph(); @@ -1039,37 +993,37 @@ BEGIN { next; # Variable and Conditional commands ######################################## - case "ifdocbook": start_conditional(command, 0); line = ""; next; - case "ifhtml": start_conditional(command, 0); line = ""; next; - case "ifinfo": start_conditional(command, 1); line = ""; next; # "for historical compatibility" - case "ifplaintext": start_conditional(command, 1); line = ""; next; - case "iftex": start_conditional(command, 0); line = ""; next; - case "ifxml": start_conditional(command, 0); line = ""; next; - - case "ifnotdocbook": start_conditional(command, 1); line = ""; next; - case "ifnothtml": start_conditional(command, 1); line = ""; next; - case "ifnotinfo": start_conditional(command, 0); line = ""; next; # "for historical compatibility" - case "ifnotplaintext": start_conditional(command, 0); line = ""; next; - case "ifnottex": start_conditional(command, 1); line = ""; next; - case "ifnotxml": start_conditional(command, 1); line = ""; next; - - case "ifclear": start_conditional(command, (variable[line] == "")); next; - case "ifset": start_conditional(command, (variable[line] != "")); next; - - case "clear": + } else if (command == "ifdocbook") { start_conditional(command, 0); line = ""; next; + } else if (command == "ifhtml") { start_conditional(command, 0); line = ""; next; + } else if (command == "ifinfo") { start_conditional(command, 1); line = ""; next; # "for historical compatibility" + } else if (command == "ifplaintext") { start_conditional(command, 1); line = ""; next; + } else if (command == "iftex") { start_conditional(command, 0); line = ""; next; + } else if (command == "ifxml") { start_conditional(command, 0); line = ""; next; + + } else if (command == "ifnotdocbook") { start_conditional(command, 1); line = ""; next; + } else if (command == "ifnothtml") { start_conditional(command, 1); line = ""; next; + } else if (command == "ifnotinfo") { start_conditional(command, 0); line = ""; next; # "for historical compatibility" + } else if (command == "ifnotplaintext") { start_conditional(command, 0); line = ""; next; + } else if (command == "ifnottex") { start_conditional(command, 1); line = ""; next; + } else if (command == "ifnotxml") { start_conditional(command, 1); line = ""; next; + + } else if (command == "ifclear") { start_conditional(command, (variable[line] == "")); next; + } else if (command == "ifset") { start_conditional(command, (variable[line] != "")); next; + + } else if (command == "clear") { if (cond_state) { variable[ execute_commands(line) ] = ""; } next; - case "set": + } else if (command == "set") { if (cond_state) { set_variable(line); } next; # Miscelleanous commands ################################################### - case "bye": + } else if (command == "bye") { # Mark the end of file, we are supposed to ignore everything after if (cond_state) { generate_paragraph(); @@ -1078,43 +1032,41 @@ BEGIN { } next; - case "c": + } else if (command == "c") { # Comments: ignore everything to the end of line next; - case "errormsg": + } else if (command == "errormsg") { print "Error: " execute_commands(cmdargs) > "/dev/stderr"; print " (from \"'"$input_file"'\", line " NR ")" > "/dev/stderr"; bye_marker_found = 1; exit 4; - case "finalout": + } else if (command == "finalout") { # Nothing to do, we are not generating anything in output file about long lines next; - case "ignore": + } else if (command == "ignore") { # These are multi-lines comments discard_block(command); next; - case "indent": + } else if (command == "indent") { par_indent = 1; if (line == "") { next; } $0 = line; - break; - case "noindent": + } else if (command == "noindent") { par_indent = 0; if (line == "") { next; } $0 = line; - break; - case "setfilename": + } else if (command == "setfilename") { # Should set the output file name automatically # at current time, we just ignore it next; - case "settitle": + } else if (command == "settitle") { # This is used for page headers # in a plain text file, it is useless next; @@ -1158,11 +1110,10 @@ BEGIN { { if (!cond_state) { next; } - switch (par_mode) { - case "list": - case "par": - case "titlepage": - case "quotation": + if ((par_mode == "list") || + (par_mode == "par") || + (par_mode == "titlepage") || + (par_mode == "quotation")) { if (/^[ \t]*$/) { # Empty lines separate paragraphs generate_paragraph(); @@ -1171,16 +1122,14 @@ BEGIN { } else { add_text_to_paragraph(execute_commands($0)); } - break; - case "example": + } else if (par_mode == "example") { # Line is printed unmodified, not split and not merged, but with an indentation $0 = line_prefix execute_commands($0); sub(/[ \t]*$/, ""); write_line($0); - break; - default: + } else { report_error("paragraph mode \"" par_mode "\" is not supported for line processing (line " NR ")"); } } -- 2.1.4 -- To unsubscribe, send mail to [email protected].
