version 1.7, 2003/06/30 20:41:12
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version 1.8, 2003/06/30 20:58:52
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Line 227 sub end_organicstructure {
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Line 227 sub end_organicstructure {
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return $result; |
return $result; |
} |
} |
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sub reaction_javascript { |
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my $rightarrow; |
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if ($ENV{'browser.unicode'}) { |
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$rightarrow=" → " |
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} else { |
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$rightarrow=" <font face=symbol>®</font> "; |
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} |
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my $result=<<REACTIONJAVASCRIPT; |
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<script language="JavaScript"> |
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var level; |
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var reactants; |
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var products; |
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function parse_reaction(string) { |
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var reaction_array = string.split('->'); |
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var i; |
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reactants = new Array(0); |
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products = new Array(0); |
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if (reaction_array.length > 0) |
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reactants = reaction_array[0].split(' +'); |
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if (reaction_array.length > 1) |
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products = reaction_array[1].split(' +'); |
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} |
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function to_capa(string) { |
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var reaction = ""; |
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var i; |
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parse_reaction(string); |
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for (i = 0; i < reactants.length; i++) |
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reactants[i] = capa_component(reactants[i]); |
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for (i = 0; i < products.length; i++) |
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products[i] = capa_component(products[i]); |
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reactants.sort(); |
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products.sort(); |
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for (i = 0; i < reactants.length-1; i++) { |
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reaction += reactants[i]; |
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reaction += " + "; |
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} |
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if (i < reactants.length) |
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reaction += reactants[i]; |
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if (products.length > 0) { |
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reaction += " -> "; |
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for (i = 0; i < products.length-1; i++) { |
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reaction += products[i]; |
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reaction += " + "; |
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} |
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if (i < products.length) |
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reaction += products[i]; |
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} |
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return reaction; |
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} |
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function capa_component(string) { |
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var reactant = ""; |
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var i = 0; |
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level = 0; |
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for (;string.substring(i,i+1) == ' ';i++) |
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; |
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for (;isDigit(string.substring(i,i+1));i++) |
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reactant += string.substring(i,i+1); |
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for (;i < string.length;i++) |
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reactant += capa_char(string.substring(i,i+1)); |
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return reactant; |
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} |
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function capa_char(chr) { |
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if (level == 0) { // baseline |
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if (chr == '^') |
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level = 1; |
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if (chr == ' ') |
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return ""; |
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return chr; |
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} |
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if (level == 1) { // superscript |
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if (isDigit(chr)) |
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return chr; |
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level = 0; |
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return chr; |
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} |
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} |
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function to_html(string) { |
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var reaction = ""; |
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var i; |
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parse_reaction(string); |
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for (i = 0; i < reactants.length-1; i++) { |
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reaction += html_component(reactants[i]); |
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reaction += " + "; |
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} |
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if (i < reactants.length) |
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reaction += html_component(reactants[i]); |
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if (products.length > 0) { |
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reaction += " $rightarrow "; |
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for (i = 0; i < products.length-1; i++) { |
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reaction += html_component(products[i]); |
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reaction += " + "; |
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} |
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if (i < products.length) |
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reaction += html_component(products[i]); |
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} |
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return reaction; |
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} |
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function html_component(string) { |
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var reactant = ""; |
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var i = 0; |
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level = 0; |
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for (;string.substring(i,i+1) == ' ';i++) |
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; |
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for (;isDigit(string.substring(i,i+1));i++) |
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reactant += string.substring(i,i+1); |
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for (;i < string.length;i++) |
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reactant += html_char(string.substring(i,i+1)); |
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return reactant; |
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} |
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function html_char(chr) { |
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if (level == 0) { // baseline |
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if (isDigit(chr)) |
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return chr.sub(); |
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if (chr == '^') { |
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level = 1; |
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return ""; |
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} |
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if (chr == '+') // baseline or superscript |
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return "?"; |
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if (chr == ' ') |
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return ""; |
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return chr; |
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} |
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if (level == 1) { // superscript |
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if (isDigit(chr)) |
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return chr.sup(); |
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if (chr == '+' || chr == '-') { |
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level = 0; |
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return chr.sup(); |
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} |
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if (chr == ' ') { |
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level = 0; |
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return ""; |
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} |
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level = 0; |
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return chr; |
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} |
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} |
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function isDigit(string) { |
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if (string >= '0' && string <='9') |
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return 1; |
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else |
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return 0; |
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} |
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function openHelpWindow() { |
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window.open("reaction_help.html","","scrollbars=yes,resizable=yes,width=550,height=600") |
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} |
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function submitReaction() { |
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reaction = to_capa(document.form.text.value); |
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if (reaction == "") { |
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alert("Nothing to submit"); |
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} |
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else { |
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name = "INPUT" + ((problem < 10) ? "0" : "") + problem; |
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i = 0; |
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while (parent.opener.document.CAPA.elements[i].name != name) |
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i++; |
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parent.opener.document.CAPA.elements[i].value = reaction; |
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parent.opener.document.CAPA.submit(); |
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} |
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} |
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</script> |
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REACTIONJAVASCRIPT |
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return $result; |
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} |
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sub start_reactionresponse { |
sub start_reactionresponse { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result; |
my $result; |