The FromString(str) calling sequence parses the input string str, which is assumed to be a valid Maple worksheet. It then converts it to a Maple XML tree.

Errors detected by the parser in this routine are reported, but the parser does not validate the worksheet. Only errors that prevent this routine from converting the input string into an internal XML format are detected.

FromString maps automatically over its arguments, returning an expression sequence of results.

$\mathrm{with}\left(\mathrm{Worksheet}\right)\:$

$\mathrm{str}≔''\{VERSION\; 5\; 0\; \backslash "SUN\; SPARC\; SOLARIS\backslash "\; \backslash "5.0\backslash "\; \}\{USTYLETAB\; \}\{SECT\; 0\; \{EXCHG\; \{PARA\; 0\; \backslash "\backslash "\; 0\; \backslash "\backslash "\; \{TEXT\; -1\; 21\; \backslash "Very\; simple\; worksheet\backslash "\; \}\}\{PARA\; 0\; \backslash ">\; \backslash "\; 0\; \backslash "\backslash "\{MPLTEXT\; 1\; 0\; 16\; \backslash "with(Worksheet);\backslash "\}\}\}\{EXCHG\; \{PARA\; 0\; \backslash ">\; \backslash "\; 0\; \backslash "\backslash "\; \{MPLTEXT\; 1\; 0\; 0\; \backslash "\backslash "\; \}\}\}\}\{MARK\; \backslash "1\; 0\; 0\backslash "\; 0\; \}\{VIEWOPTS\; 1\; 1\; 0\; 1\; 1\; 1803\; 1\; 1\; 1\; 1\; \}\{PAGENUMBERS\; 0\; 1\; 2\; 33\; 1\; 1\; \}''$

$\mathrm{str}≔''\{VERSION\; 5\; 0\; "SUN\; SPARC\; SOLARIS"\; "5.0"\; \}\{USTYLETAB\; \}\{SECT\; 0\; \{EXCHG\; \{PARA\; 0\; ""\; 0\; ""\; \{TEXT\; -1\; 21\; "Very\; simple\; worksheet"\; \}\}\{PARA\; 0\; ">\; "\; 0\; ""\{MPLTEXT\; 1\; 0\; 16\; "with(Worksheet);"\}\}\}\{EXCHG\; \{PARA\; 0\; ">\; "\; 0\; ""\; \{MPLTEXT\; 1\; 0\; 0\; ""\; \}\}\}\}\{MARK\; "1\; 0\; 0"\; 0\; \}\{VIEWOPTS\; 1\; 1\; 0\; 1\; 1\; 1803\; 1\; 1\; 1\; 1\; \}\{PAGENUMBERS\; 0\; 1\; 2\; 33\; 1\; 1\; \}''$

$\mathrm{doc1}≔\mathrm{FromString}\left(\mathrm{str}\,\mathrm{format}=''maple8\_xml''\right)\:$

$\mathrm{doc3}≔\mathrm{FromString}\left(\mathrm{str}\,\mathrm{format}=''mw''\right)\:$

$\mathrm{str1}≔\mathrm{ToString}\left(\mathrm{doc1}\,\mathrm{format}=''mws''\right)\:$

$\mathrm{str2}≔\mathrm{ToString}\left(\mathrm{doc1}\,\mathrm{format}=''maple8\_xml''\right)\:$

$\mathrm{str3}≔\mathrm{ToString}\left(\mathrm{doc1}\,\mathrm{format}=''mw''\right)\:$

$\mathrm{doc3}≔\mathrm{FromString}\left(\mathrm{str1}\,\mathrm{format}=''maple8\_xml''\right)\:$

$\mathrm{Display}\left(\mathrm{str1}\right)\:$

$\mathrm{Display}\left(\mathrm{doc1}\right)\:$