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    1. POIs Syntax Error reporting possible with boost::xpressive grammars?
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    1. USJohn Zwinck
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    1. COThanks. I've used flex/bison in the past, which was good in its way, and I'm aware of the other parser generators like ANTLR (I've even written one in python). For that matter the simplicity of the language means its no trouble to write a recursive descent parser by hand and have that report errors (which I may do). But XPressive is in C++ with no extra build step (which can be a pain when building on multiple Operating systems) and I'd like to use it if possible. I tried boost::spirit but the the extra complexity and length/illegibility of compiler errors put me off.
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    2. COBoost itself is a pain for some users on some systems. For example people with older versions of compilers (e.g. OS-vendor provided ones) may not be able to build your code. I would argue that while your build script may need a couple special lines for ANTLR, using ANTLR instead of Xpressive may end up making your overall project more portable, not less. Certainly what you say about Spirit agrees with my experience--that thing at first appears to be production-ready, but I'm not so sure.
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    3. COAll fair points! My worry was not so much portability, more laziness! When I say 'a pain building on multiple operating systems', I of course mean windows. It always seems five times the work/testing to add something into a windows build chain. Also I will probably end up depending on boost for one or two other things. As I suspected I've ended up hand crafting one (which probably took less time than reading the ANTLR manual, or re-reading the flex/bison manuals for that matter). Just wanted to know if i could do it with XPressive, even if its not the *best* way to do it.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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