Minor improvements to tools blocks

* Uses the split block for word to list
* Uses the split block for sentence to list
* Removes the word to list block from the words and sentences library
(since it was promoted to the tools library)

The use of the split block makes the two blocks essentially a wrapper
function, and it should improve the performance of the two blocks when
used in projects. They function identically to the current versions.

2 files changed, 2 insertions, 2 deletions

diff --git a/libraries/word-sentence.xml b/libraries/word-sentence.xml
index 050b417..415b729 100644
--- a/libraries/word-sentence.xml
+++ b/libraries/word-sentence.xml
@@ -1 +1 @@
-<blocks app="Snap! 4.0, http://snap.berkeley.edu" version="1"><block-definition s="all but first letter of %&apos;string&apos;" type="reporter" category="operators"><comment x="0" y="0" w="199" collapsed="false">Takes a text string as input, and reports a new text string containing all but the first character of the input.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>result</l><l>i</l></list></block><block s="doWarp"><script><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="string"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportSum"><l>0</l><l>0</l></block></block></block></script></block><block s="doSetVar"><l>result</l><l></l></block><block s="doSetVar"><l>i</l><l>2</l></block><block s="doUntil"><block s="reportGreaterThan"><block var="i"/><block s="reportStringSize"><block var="string"/></block></block><script><block s="doSetVar"><l>result</l><block s="reportJoinWords"><list><block var="result"/><block s="reportLetter"><block var="i"/><block var="string"/></block></list></block></block><block s="doChangeVar"><l>i</l><l>1</l></block></script></block><block s="doReport"><block var="result"/></block></script></block></script></block-definition><block-definition s="all but first word of %&apos;sentence&apos;" type="reporter" category="operators"><comment x="0" y="0" w="223.000001" collapsed="false">Takes a text string as input, divides it into words treating one or more spaces as a word separator (only spaces count; punctuation is part of the word) and reports a text string containing all but the first word, with one space between words and no spaces at the beginning or end. (Note: consider using SENTENCE-&gt;LIST and processing the resulting list instead of doing recursion on sentences in text string form.  List operations are faster.)</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>index</l><l>bf</l></list></block><block s="doWarp"><script><block s="doSetVar"><l>bf</l><l></l></block><block s="doSetVar"><l>index</l><l>1</l></block><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="sentence"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doIf"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block><script><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doIf"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><script><block s="doReport"><l></l></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doIf"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block><script><block s="doReport"><l></l></block></script></block><block s="doUntil"><block s="reportGreaterThan"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><script><block s="doSetVar"><l>bf</l><block s="reportJoinWords"><list><block var="bf"/><block s="reportLetter"><block var="index"/><block var="sentence"/></block></list></block></block><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doReport"><block var="bf"/></block></script></block></script></block-definition><block-definition s="all but last letter of %&apos;string&apos;" type="reporter" category="operators"><comment x="0" y="0" w="218" collapsed="false">Takes a text string as input, and reports a new text string containing all but the last letter of the input.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>result</l><l>i</l></list></block><block s="doWarp"><script><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="string"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportSum"><l>0</l><l>0</l></block></block></block></script></block><block s="doSetVar"><l>result</l><l></l></block><block s="doSetVar"><l>i</l><l>1</l></block><block s="doUntil"><block s="reportEquals"><block var="i"/><block s="reportStringSize"><block var="string"/></block></block><script><block s="doSetVar"><l>result</l><block s="reportJoinWords"><list><block var="result"/><block s="reportLetter"><block var="i"/><block var="string"/></block></list></block></block><block s="doChangeVar"><l>i</l><l>1</l></block></script></block><block s="doReport"><block var="result"/></block></script></block></script></block-definition><block-definition s="all but last word of %&apos;sentence&apos;" type="reporter" category="operators"><comment x="0" y="0" w="212" collapsed="false">Takes a text string as input, divides it into words treating one or more spaces as a word separator (only spaces count; punctuation is part of the word) and reports a text string containing all but the last word, with one space between words and no spaces at the beginning or end.  (Note: consider using SENTENCE-&gt;LIST and processing the resulting list instead of doing recursion on sentences in text string form.  List operations are faster.)</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>index</l><l>bl</l></list></block><block s="doWarp"><script><block s="doSetVar"><l>bl</l><l></l></block><block s="doSetVar"><l>index</l><block s="reportStringSize"><block var="sentence"/></block></block><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="sentence"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><l>1</l></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>-1</l></block></script></block><block s="doIf"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><l>1</l></block><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block><script><block s="doChangeVar"><l>index</l><l>-1</l></block></script></block><block s="doIf"><block s="reportEquals"><block var="index"/><l>1</l></block><script><block s="doReport"><l></l></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><l>1</l></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block 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containing only the first word, with no spaces before or after it.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>index</l><l>first</l></list></block><block s="doWarp"><script><block s="doSetVar"><l>first</l><l></l></block><block s="doSetVar"><l>index</l><l>1</l></block><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="sentence"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block 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var="index"/><block var="sentence"/></block><l> </l></block></block><script><block s="doSetVar"><l>first</l><block s="reportJoinWords"><list><block var="first"/><block s="reportLetter"><block var="index"/><block var="sentence"/></block></list></block></block></script></block><block s="doReport"><block var="first"/></block></script></block></script></block-definition><block-definition s="last letter of %&apos;word&apos;" type="reporter" category="operators"><comment x="0" y="0" w="260" collapsed="false">Takes a text string as input, and reports the last character in the string.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doReport"><block s="reportLetter"><block s="reportStringSize"><block var="word"/></block><block var="word"/></block></block></script></block-definition><block-definition s="last word of %&apos;sentence&apos;" type="reporter" category="operators"><comment x="0" y="0" w="262" collapsed="false">Takes a text string as input, divides it into words treating one or more spaces as a word separator (only spaces count; punctuation is part of the word) and reports a text string containing only the last word of the input, with no spaces before or after it.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>index</l><l>last</l></list></block><block s="doWarp"><script><block s="doSetVar"><l>last</l><l></l></block><block s="doSetVar"><l>index</l><block s="reportStringSize"><block var="sentence"/></block></block><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="sentence"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><l>1</l></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>-1</l></block></script></block><block s="doIf"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><l>1</l></block><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block><script><block s="doSetVar"><l>last</l><block s="reportJoinWords"><list><block s="reportLetter"><block var="index"/><block var="sentence"/></block><block var="last"/></list></block></block><block s="doChangeVar"><l>index</l><l>-1</l></block></script></block><block 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%&apos;sentence&apos;" type="predicate" category="operators"><comment x="0" y="0" w="221" collapsed="false">Takes a text string as input, and reports TRUE if the input contains no characters other than spaces (therefore, no words when the string is considered as a sentence), otherwise FALSE.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>index</l></list></block><block s="doSetVar"><l>index</l><l>1</l></block><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="sentence"/></block><l>0</l></block><script><block s="doReport"><block s="reportTrue"></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doReport"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></script></block-definition><block-definition s="word $arrowRight list %&apos;text&apos;" type="reporter" category="operators"><comment w="160" collapsed="false">Takes a text string as input, and reports a list in which each item is a single character from the string.</comment><header></header><code></code><inputs><input type="%s"></input></inputs><script><block s="doDeclareVariables"><list><l>result</l><l>index</l></list></block><block s="doSetVar"><l>result</l><block s="reportNewList"><list></list></block></block><block s="doSetVar"><l>index</l><l>1</l></block><block s="doUntil"><block s="reportGreaterThan"><block var="index"/><block s="reportStringSize"><block var="text"/></block></block><script><block s="doAddToList"><block s="reportLetter"><block var="index"/><block var="text"/></block><block var="result"/></block><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doReport"><block var="result"/></block></script></block-definition></blocks>
\ No newline at end of file
+<blocks app="Snap! 4.0, http://snap.berkeley.edu" version="1"><block-definition s="all but first letter of %&apos;string&apos;" type="reporter" category="operators"><comment x="0" y="0" w="199" collapsed="false">Takes a text string as input, and reports a new text string containing all but the first character of the input.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>result</l><l>i</l></list></block><block s="doWarp"><script><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="string"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportSum"><l>0</l><l>0</l></block></block></block></script></block><block s="doSetVar"><l>result</l><l></l></block><block s="doSetVar"><l>i</l><l>2</l></block><block s="doUntil"><block s="reportGreaterThan"><block var="i"/><block s="reportStringSize"><block var="string"/></block></block><script><block s="doSetVar"><l>result</l><block s="reportJoinWords"><list><block var="result"/><block s="reportLetter"><block var="i"/><block var="string"/></block></list></block></block><block s="doChangeVar"><l>i</l><l>1</l></block></script></block><block s="doReport"><block var="result"/></block></script></block></script></block-definition><block-definition s="all but first word of %&apos;sentence&apos;" type="reporter" category="operators"><comment x="0" y="0" w="223.000001" collapsed="false">Takes a text string as input, divides it into words treating one or more spaces as a word separator (only spaces count; punctuation is part of the word) and reports a text string containing all but the first word, with one space between words and no spaces at the beginning or end. (Note: consider using SENTENCE-&gt;LIST and processing the resulting list instead of doing recursion on sentences in text string form.  List operations are faster.)</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>index</l><l>bf</l></list></block><block s="doWarp"><script><block s="doSetVar"><l>bf</l><l></l></block><block s="doSetVar"><l>index</l><l>1</l></block><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="sentence"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doIf"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block><script><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doIf"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><script><block s="doReport"><l></l></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doIf"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block><script><block s="doReport"><l></l></block></script></block><block s="doUntil"><block s="reportGreaterThan"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><script><block s="doSetVar"><l>bf</l><block s="reportJoinWords"><list><block var="bf"/><block s="reportLetter"><block var="index"/><block var="sentence"/></block></list></block></block><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doReport"><block var="bf"/></block></script></block></script></block-definition><block-definition s="all but last letter of %&apos;string&apos;" type="reporter" category="operators"><comment x="0" y="0" w="218" collapsed="false">Takes a text string as input, and reports a new text string containing all but the last letter of the input.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>result</l><l>i</l></list></block><block s="doWarp"><script><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="string"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportSum"><l>0</l><l>0</l></block></block></block></script></block><block s="doSetVar"><l>result</l><l></l></block><block s="doSetVar"><l>i</l><l>1</l></block><block s="doUntil"><block s="reportEquals"><block var="i"/><block s="reportStringSize"><block var="string"/></block></block><script><block s="doSetVar"><l>result</l><block s="reportJoinWords"><list><block var="result"/><block s="reportLetter"><block var="i"/><block var="string"/></block></list></block></block><block s="doChangeVar"><l>i</l><l>1</l></block></script></block><block s="doReport"><block var="result"/></block></script></block></script></block-definition><block-definition s="all but last word of %&apos;sentence&apos;" type="reporter" category="operators"><comment x="0" y="0" w="212" collapsed="false">Takes a text string as input, divides it into words treating one or more spaces as a word separator (only spaces count; punctuation is part of the word) and reports a text string containing all but the last word, with one space between words and no spaces at the beginning or end.  (Note: consider using SENTENCE-&gt;LIST and processing the resulting list instead of doing recursion on sentences in text string form.  List operations are faster.)</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>index</l><l>bl</l></list></block><block s="doWarp"><script><block s="doSetVar"><l>bl</l><l></l></block><block s="doSetVar"><l>index</l><block s="reportStringSize"><block var="sentence"/></block></block><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="sentence"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><l>1</l></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>-1</l></block></script></block><block s="doIf"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><l>1</l></block><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block><script><block s="doChangeVar"><l>index</l><l>-1</l></block></script></block><block s="doIf"><block s="reportEquals"><block var="index"/><l>1</l></block><script><block s="doReport"><l></l></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><l>1</l></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>-1</l></block></script></block><block s="doIf"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block><script><block s="doReport"><l></l></block></script></block><block s="doUntil"><block s="reportLessThan"><block var="index"/><l>1</l></block><script><block s="doSetVar"><l>bl</l><block s="reportJoinWords"><list><block s="reportLetter"><block var="index"/><block var="sentence"/></block><block var="bl"/></list></block></block><block s="doChangeVar"><l>index</l><l>-1</l></block></script></block><block s="doReport"><block var="bl"/></block></script></block></script></block-definition><block-definition s="first word of %&apos;sentence&apos;" type="reporter" category="operators"><comment x="0" y="0" w="236" collapsed="false">Takes a text string as input, divides it into words treating one or more spaces as a word separator (only spaces count; punctuation is part of the word) and reports a text string containing only the first word, with no spaces before or after it.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>index</l><l>first</l></list></block><block s="doWarp"><script><block s="doSetVar"><l>first</l><l></l></block><block s="doSetVar"><l>index</l><l>1</l></block><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="sentence"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doIf"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block><script><block s="doSetVar"><l>first</l><block s="reportJoinWords"><list><block var="first"/><block s="reportLetter"><block var="index"/><block var="sentence"/></block></list></block></block><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doIf"><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block><script><block s="doSetVar"><l>first</l><block s="reportJoinWords"><list><block var="first"/><block s="reportLetter"><block var="index"/><block var="sentence"/></block></list></block></block></script></block><block s="doReport"><block var="first"/></block></script></block></script></block-definition><block-definition s="last letter of %&apos;word&apos;" type="reporter" category="operators"><comment x="0" y="0" w="260" collapsed="false">Takes a text string as input, and reports the last character in the string.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doReport"><block s="reportLetter"><block s="reportStringSize"><block var="word"/></block><block var="word"/></block></block></script></block-definition><block-definition s="last word of %&apos;sentence&apos;" type="reporter" category="operators"><comment x="0" y="0" w="262" collapsed="false">Takes a text string as input, divides it into words treating one or more spaces as a word separator (only spaces count; punctuation is part of the word) and reports a text string containing only the last word of the input, with no spaces before or after it.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>index</l><l>last</l></list></block><block s="doWarp"><script><block s="doSetVar"><l>last</l><l></l></block><block s="doSetVar"><l>index</l><block s="reportStringSize"><block var="sentence"/></block></block><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="sentence"/></block><l>0</l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><l>1</l></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>-1</l></block></script></block><block s="doIf"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block><script><block s="doReport"><block s="reportListItem"><l>1</l><block s="reportJoinWords"><list><l>empty </l><l>sentence</l></list></block></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><l>1</l></block><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block><script><block s="doSetVar"><l>last</l><block s="reportJoinWords"><list><block s="reportLetter"><block var="index"/><block var="sentence"/></block><block var="last"/></list></block></block><block s="doChangeVar"><l>index</l><l>-1</l></block></script></block><block s="doIf"><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block><script><block s="doSetVar"><l>last</l><block s="reportJoinWords"><list><block s="reportLetter"><block var="index"/><block var="sentence"/></block><block var="last"/></list></block></block></script></block><block s="doReport"><block var="last"/></block></script></block></script></block-definition><block-definition s="empty word? %&apos;word&apos;" type="predicate" category="operators"><comment x="0" y="0" w="208" collapsed="false">Takes a text string as input, and reports TRUE if the string has no characters in it of any kind, otherwise false.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doReport"><block s="reportEquals"><block s="reportStringSize"><block var="word"/></block><l>0</l></block></block></script></block-definition><block-definition s="empty sentence? %&apos;sentence&apos;" type="predicate" category="operators"><comment x="0" y="0" w="221" collapsed="false">Takes a text string as input, and reports TRUE if the input contains no characters other than spaces (therefore, no words when the string is considered as a sentence), otherwise FALSE.</comment><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doDeclareVariables"><list><l>index</l></list></block><block s="doSetVar"><l>index</l><l>1</l></block><block s="doIf"><block s="reportEquals"><block s="reportStringSize"><block var="sentence"/></block><l>0</l></block><script><block s="doReport"><block s="reportTrue"></block></block></script></block><block s="doUntil"><block s="reportOr"><block s="reportEquals"><block var="index"/><block s="reportStringSize"><block var="sentence"/></block></block><block s="reportNot"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></block><script><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doReport"><block s="reportEquals"><block s="reportLetter"><block var="index"/><block var="sentence"/></block><l> </l></block></block></script></block-definition></blocks>
\ No newline at end of file
diff --git a/tools.xml b/tools.xml
index 0a77082..25336c9 100644
--- a/tools.xml
+++ b/tools.xml
@@ -1 +1 @@
-<blocks app="Snap! 4.0, http://snap.berkeley.edu" version="1"><block-definition s="map %&apos;function&apos; over %&apos;lists&apos;" type="reporter" category="lists"><header></header><code></code><inputs><input type="%repRing"></input><input type="%mult%l"></input></inputs><script><block s="doWarp"><script><block s="doDeclareVariables"><list><l>mapone</l><l>mapmany</l></list></block><block s="doSetVar"><l>mapone</l><block s="reifyScript"><script><block s="doIf"><custom-block s="empty? %l"><block var="data"/></custom-block><script><block s="doReport"><block s="reportNewList"><list></list></block></block></script></block><block s="doReport"><block s="reportCONS"><block s="evaluate"><block var="function"/><list><block s="reportListItem"><l>1</l><block var="data"/></block></list></block><block s="evaluate"><block var="mapone"/><list><block s="reportCDR"><block var="data"/></block></list></block></block></block></script><list><l>data</l></list></block></block><block s="doSetVar"><l>mapmany</l><block s="reifyScript"><script><block s="doIf"><custom-block s="empty? %l"><block s="reportListItem"><l>1</l><block var="data lists"/></block></custom-block><script><block s="doReport"><block s="reportNewList"><list></list></block></block></script></block><block s="doReport"><block s="reportCONS"><block s="evaluate"><block var="function"/><custom-block s="map %repRing over %mult%l"><block s="reifyReporter"><autolambda><block s="reportListItem"><l>1</l><l/></block></autolambda><list></list></block><list><block var="data lists"/></list></custom-block></block><block s="evaluate"><block var="mapmany"/><list><custom-block s="map %repRing over %mult%l"><block s="reifyReporter"><autolambda><block s="reportCDR"><l/></block></autolambda><list></list></block><list><block var="data lists"/></list></custom-block></list></block></block></block></script><list><l>data lists</l></list></block></block><block s="doIfElse"><custom-block s="empty? %l"><block s="reportCDR"><block var="lists"/></block></custom-block><script><block s="doReport"><block s="evaluate"><block var="mapone"/><list><block s="reportListItem"><l>1</l><block var="lists"/></block></list></block></block></script><script><block s="doReport"><block s="evaluate"><block var="mapmany"/><list><block var="lists"/></list></block></block></script></block></script></block></script></block-definition><block-definition s="empty? %&apos;data&apos;" type="predicate" category="lists"><header></header><code></code><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="reportEquals"><block var="data"/><block s="reportNewList"><list></list></block></block></block></script></block-definition><block-definition s="keep items such that %&apos;pred&apos; from %&apos;data&apos;" type="reporter" category="lists"><header></header><code></code><inputs><input type="%predRing"></input><input type="%l"></input></inputs><script><block s="doWarp"><script><block s="doIf"><custom-block s="empty? %l"><block var="data"/></custom-block><script><block s="doReport"><block s="reportNewList"><list></list></block></block></script></block><block s="doIfElse"><block s="evaluate"><block var="pred"/><list><block s="reportListItem"><l>1</l><block var="data"/></block></list></block><script><block s="doReport"><block s="reportCONS"><block s="reportListItem"><l>1</l><block var="data"/></block><custom-block s="keep items such that %predRing from %l"><block var="pred"/><block s="reportCDR"><block var="data"/></block></custom-block></block></block></script><script><block s="doReport"><custom-block s="keep items such that %predRing from %l"><block var="pred"/><block s="reportCDR"><block var="data"/></block></custom-block></block></script></block></script></block></script></block-definition><block-definition s="combine with %&apos;function&apos; items of %&apos;data&apos;" type="reporter" category="lists"><header></header><code></code><inputs><input type="%repRing"></input><input type="%l"></input></inputs><script><block s="doWarp"><script><block s="doIf"><custom-block s="empty? 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