+1, especially for the at-exp post
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> On Aug 31, 2018, at 4:14 PM, Alex Harsanyi wrote:
>
> Thanks for this solution, it works. While I understand what is being done, I
> do not understand why it is necessary
>From the docs:
"The path is normally computed by taking a relative path result from expr and
adding it to a path
On Thursday, August 23, 2018 at 3:48:03 PM UTC-4, Greg Hendershott wrote:
> This is a bit rough and old but:
>
> https://github.com/greghendershott/racket-clojure-cheat-sheet
>
You are too modest! I found your blog, and it's definitely got the kind of
information I'm looking for. For
On Friday, August 31, 2018 at 11:11:29 PM UTC+8, Matthew Butterick wrote:
>
>
> On Aug 31, 2018, at 3:25 AM, Alex Harsanyi > wrote:
>
> Is there a way to write this macro such that the runtime path is defined
> relative to the location of the file that uses `define-sql-statement`?
>
>
> One
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#lang racket
(require racket/runtime-path db (for-syntax racket/base syntax/parse))
(define-syntax (define-sql-statement stx)
(syntax-parse stx
[(_ name #;path)
(define location (syntax-source #'name))
(define-values (path file _) (split-path location))
(with-syntax ([path
> On Aug 31, 2018, at 3:25 AM, Alex Harsanyi wrote:
>
> Is there a way to write this macro such that the runtime path is defined
> relative to the location of the file that uses `define-sql-statement`?
One option, using `syntax-source` to get the starting directory:
#lang racket
(require
Summary of the thread:
"Hey, here's this thing I'd like to do. Is there a way to do it?"
T = : "Nope. Here's some suggestions, though."
T = 22 hours: "Here, let me add that feature to the language."
Man, I love this community. Thank you to everyone.
On Fri, Aug 31, 2018 at 5:46 AM, Ryan
I have defined a macro to help with using SQL queries from external files:
it
uses `define-runtime-path` to store the path to the file and defines a
function that reads the data when called the first time and constructs a
`virtual-statement`:
#lang racket
(require racket/runtime-path db
On 8/31/18 4:28 AM, Greg Hendershott wrote:
A general trick for optional values with match is something like (or
pat (app (λ _ default-value) pat)). But that doesn't work for
hash-table which uses [pat path] for each mapping. (At least I
couldn't see how.)
Here's _a_ way you could write this as
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